diff --git a/activities/Blockrain.activity/index.html b/activities/Blockrain.activity/index.html
index 377bc5470..7360374a2 100644
--- a/activities/Blockrain.activity/index.html
+++ b/activities/Blockrain.activity/index.html
@@ -5,7 +5,7 @@
 <meta charset="utf-8" />
 <title>Blockrain Activity</title>
 <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, viewport-fit=cover"/>
-<link rel="prefetch" type="application/l10n" href="locale.ini">
+
 <link rel="stylesheet" media="not screen and (device-width: 1200px) and (device-height: 900px)"
 	href="lib/sugar-web/graphics/css/sugar-96dpi.css">
 <link rel="stylesheet" media="screen and (device-width: 1200px) and (device-height: 900px)"
diff --git a/activities/Blockrain.activity/js/activity.js b/activities/Blockrain.activity/js/activity.js
index 73349f29f..1b682f5d5 100644
--- a/activities/Blockrain.activity/js/activity.js
+++ b/activities/Blockrain.activity/js/activity.js
@@ -1,4 +1,4 @@
-define(["sugar-web/activity/activity","sugar-web/env", "webL10n", "tutorial"], function (activity,env, webL10n, tutorial) {
+define(["sugar-web/activity/activity","sugar-web/env", "l10n", "tutorial"], function (activity,env, l10n, tutorial) {
 
 	// Manipulate the DOM only when it is ready.
 	requirejs(['domReady!'], function (doc) {
@@ -8,7 +8,7 @@ define(["sugar-web/activity/activity","sugar-web/env", "webL10n", "tutorial"], f
 		env.getEnvironment(function(err, environment) {
 			var defaultLanguage = (typeof chrome != 'undefined' && chrome.app && chrome.app.runtime) ? chrome.i18n.getUILanguage() : navigator.language;
 			var language = environment.user ? environment.user.language : defaultLanguage;
-			webL10n.language.code = language;
+			l10n.init(language);
 		});
 		var myHighestScore = 0;
 
diff --git a/activities/Blockrain.activity/lib/axios.min.js b/activities/Blockrain.activity/lib/axios.min.js
new file mode 100644
index 000000000..a91818f04
--- /dev/null
+++ b/activities/Blockrain.activity/lib/axios.min.js
@@ -0,0 +1,3 @@
+/* axios v0.21.1 | (c) 2020 by Matt Zabriskie */
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.axios=t():e.axios=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return e[r].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){"use strict";function r(e){var t=new i(e),n=s(i.prototype.request,t);return o.extend(n,i.prototype,t),o.extend(n,t),n}var o=n(2),s=n(3),i=n(4),a=n(22),u=n(10),c=r(u);c.Axios=i,c.create=function(e){return r(a(c.defaults,e))},c.Cancel=n(23),c.CancelToken=n(24),c.isCancel=n(9),c.all=function(e){return Promise.all(e)},c.spread=n(25),c.isAxiosError=n(26),e.exports=c,e.exports.default=c},function(e,t,n){"use strict";function r(e){return"[object Array]"===R.call(e)}function o(e){return"undefined"==typeof e}function s(e){return 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+//# sourceMappingURL=axios.min.map
diff --git a/activities/Blockrain.activity/lib/i18next.min.js b/activities/Blockrain.activity/lib/i18next.min.js
new file mode 100644
index 000000000..00b2fd83e
--- /dev/null
+++ b/activities/Blockrain.activity/lib/i18next.min.js
@@ -0,0 +1 @@
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a=e.split(n);(n!==i||n===i&&this.options.ns.indexOf(a[0])>-1)&&(o=a.shift()),e=a.join(i)}return"string"==typeof o&&(o=[o]),{key:e,namespaces:o}}},{key:"translate",value:function(t,i,r){var a=this;if("object"!==e(i)&&this.options.overloadTranslationOptionHandler&&(i=this.options.overloadTranslationOptionHandler(arguments)),i||(i={}),null==t)return"";Array.isArray(t)||(t=[String(t)]);var s=void 0!==i.keySeparator?i.keySeparator:this.options.keySeparator,u=this.extractFromKey(t[t.length-1],i),l=u.key,c=u.namespaces,p=c[c.length-1],g=i.lng||this.language,f=i.appendNamespaceToCIMode||this.options.appendNamespaceToCIMode;if(g&&"cimode"===g.toLowerCase()){if(f){var h=i.nsSeparator||this.options.nsSeparator;return p+h+l}return l}var d=this.resolve(t,i),v=d&&d.res,y=d&&d.usedKey||l,m=d&&d.exactUsedKey||l,b=Object.prototype.toString.apply(v),k=void 0!==i.joinArrays?i.joinArrays:this.options.joinArrays,x=!this.i18nFormat||this.i18nFormat.handleAsObject;if(x&&v&&("string"!=typeof v&&"boolean"!=typeof v&&"number"!=typeof v)&&["[object Number]","[object Function]","[object RegExp]"].indexOf(b)<0&&("string"!=typeof k||"[object Array]"!==b)){if(!i.returnObjects&&!this.options.returnObjects)return this.logger.warn("accessing an object - but returnObjects options is not enabled!"),this.options.returnedObjectHandler?this.options.returnedObjectHandler(y,v,i):"key '".concat(l," (").concat(this.language,")' returned an object instead of string.");if(s){var S="[object Array]"===b,w=S?[]:{},L=S?m:y;for(var O in v)if(Object.prototype.hasOwnProperty.call(v,O)){var N="".concat(L).concat(s).concat(O);w[O]=this.translate(N,n({},i,{joinArrays:!1,ns:c})),w[O]===N&&(w[O]=v[O])}v=w}}else if(x&&"string"==typeof k&&"[object Array]"===b)(v=v.join(k))&&(v=this.extendTranslation(v,t,i,r));else{var R=!1,C=!1,j=void 0!==i.count&&"string"!=typeof i.count,E=o.hasDefaultValue(i),P=j?this.pluralResolver.getSuffix(g,i.count):"",F=i["defaultValue".concat(P)]||i.defaultValue;!this.isValidLookup(v)&&E&&(R=!0,v=F),this.isValidLookup(v)||(C=!0,v=l);var V=E&&F!==v&&this.options.updateMissing;if(C||R||V){if(this.logger.log(V?"updateKey":"missingKey",g,p,l,V?F:v),s){var T=this.resolve(l,n({},i,{keySeparator:!1}));T&&T.res&&this.logger.warn("Seems the loaded translations were in flat JSON format instead of nested. 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e)if(Object.prototype.hasOwnProperty.call(e,t)&&"defaultValue"===t.substring(0,"defaultValue".length)&&void 0!==e[t])return!0;return!1}}]),o}();function C(e){return e.charAt(0).toUpperCase()+e.slice(1)}var j=function(){function e(t){i(this,e),this.options=t,this.whitelist=this.options.supportedLngs||!1,this.supportedLngs=this.options.supportedLngs||!1,this.logger=g.create("languageUtils")}return r(e,[{key:"getScriptPartFromCode",value:function(e){if(!e||e.indexOf("-")<0)return null;var t=e.split("-");return 2===t.length?null:(t.pop(),"x"===t[t.length-1].toLowerCase()?null:this.formatLanguageCode(t.join("-")))}},{key:"getLanguagePartFromCode",value:function(e){if(!e||e.indexOf("-")<0)return e;var t=e.split("-");return this.formatLanguageCode(t[0])}},{key:"formatLanguageCode",value:function(e){if("string"==typeof e&&e.indexOf("-")>-1){var t=["hans","hant","latn","cyrl","cans","mong","arab"],n=e.split("-");return this.options.lowerCaseLng?n=n.map(function(e){return e.toLowerCase()}):2===n.length?(n[0]=n[0].toLowerCase(),n[1]=n[1].toUpperCase(),t.indexOf(n[1].toLowerCase())>-1&&(n[1]=C(n[1].toLowerCase()))):3===n.length&&(n[0]=n[0].toLowerCase(),2===n[1].length&&(n[1]=n[1].toUpperCase()),"sgn"!==n[0]&&2===n[2].length&&(n[2]=n[2].toUpperCase()),t.indexOf(n[1].toLowerCase())>-1&&(n[1]=C(n[1].toLowerCase())),t.indexOf(n[2].toLowerCase())>-1&&(n[2]=C(n[2].toLowerCase()))),n.join("-")}return this.options.cleanCode||this.options.lowerCaseLng?e.toLowerCase():e}},{key:"isWhitelisted",value:function(e){return this.logger.deprecate("languageUtils.isWhitelisted",'function "isWhitelisted" will be renamed to "isSupportedCode" in the next major - please make sure to rename it\'s usage 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n||(n=e[this.getScriptPartFromCode(t)]),n||(n=e[this.formatLanguageCode(t)]),n||(n=e[this.getLanguagePartFromCode(t)]),n||(n=e.default),n||[]}},{key:"toResolveHierarchy",value:function(e,t){var n=this,i=this.getFallbackCodes(t||this.options.fallbackLng||[],e),o=[],r=function(e){e&&(n.isSupportedCode(e)?o.push(e):n.logger.warn("rejecting language code not found in supportedLngs: ".concat(e)))};return"string"==typeof e&&e.indexOf("-")>-1?("languageOnly"!==this.options.load&&r(this.formatLanguageCode(e)),"languageOnly"!==this.options.load&&"currentOnly"!==this.options.load&&r(this.getScriptPartFromCode(e)),"currentOnly"!==this.options.load&&r(this.getLanguagePartFromCode(e))):"string"==typeof e&&r(this.formatLanguageCode(e)),i.forEach(function(e){o.indexOf(e)<0&&r(n.formatLanguageCode(e))}),o}}]),e}(),E=[{lngs:["ach","ak","am","arn","br","fil","gun","ln","mfe","mg","mi","oc","pt","pt-BR","tg","tl","ti","tr","uz","wa"],nr:[1,2],fc:1},{lngs:["af","an","ast","az","bg","bn","ca","da","de","dev","el","en","eo","es","et","eu","fi","fo","fur","fy","gl","gu","ha","hi","hu","hy","ia","it","kk","kn","ku","lb","mai","ml","mn","mr","nah","nap","nb","ne","nl","nn","no","nso","pa","pap","pms","ps","pt-PT","rm","sco","se","si","so","son","sq","sv","sw","ta","te","tk","ur","yo"],nr:[1,2],fc:2},{lngs:["ay","bo","cgg","fa","ht","id","ja","jbo","ka","km","ko","ky","lo","ms","sah","su","th","tt","ug","vi","wo","zh"],nr:[1],fc:3},{lngs:["be","bs","cnr","dz","hr","ru","sr","uk"],nr:[1,2,5],fc:4},{lngs:["ar"],nr:[0,1,2,3,11,100],fc:5},{lngs:["cs","sk"],nr:[1,2,5],fc:6},{lngs:["csb","pl"],nr:[1,2,5],fc:7},{lngs:["cy"],nr:[1,2,3,8],fc:8},{lngs:["fr"],nr:[1,2],fc:9},{lngs:["ga"],nr:[1,2,3,7,11],fc:10},{lngs:["gd"],nr:[1,2,3,20],fc:11},{lngs:["is"],nr:[1,2],fc:12},{lngs:["jv"],nr:[0,1],fc:13},{lngs:["kw"],nr:[1,2,3,4],fc:14},{lngs:["lt"],nr:[1,2,10],fc:15},{lngs:["lv"],nr:[1,2,0],fc:16},{lngs:["mk"],nr:[1,2],fc:17},{lngs:["mnk"],nr:[0,1,2],fc:18},{lngs:["mt"],nr:[1,2,11,20],fc:19},{lngs:["or"],nr:[2,1],fc:2},{lngs:["ro"],nr:[1,2,20],fc:20},{lngs:["sl"],nr:[5,1,2,3],fc:21},{lngs:["he","iw"],nr:[1,2,20,21],fc:22}],P={1:function(e){return Number(e>1)},2:function(e){return Number(1!=e)},3:function(e){return 0},4:function(e){return Number(e%10==1&&e%100!=11?0:e%10>=2&&e%10<=4&&(e%100<10||e%100>=20)?1:2)},5:function(e){return Number(0==e?0:1==e?1:2==e?2:e%100>=3&&e%100<=10?3:e%100>=11?4:5)},6:function(e){return Number(1==e?0:e>=2&&e<=4?1:2)},7:function(e){return Number(1==e?0:e%10>=2&&e%10<=4&&(e%100<10||e%100>=20)?1:2)},8:function(e){return Number(1==e?0:2==e?1:8!=e&&11!=e?2:3)},9:function(e){return Number(e>=2)},10:function(e){return Number(1==e?0:2==e?1:e<7?2:e<11?3:4)},11:function(e){return Number(1==e||11==e?0:2==e||12==e?1:e>2&&e<20?2:3)},12:function(e){return Number(e%10!=1||e%100==11)},13:function(e){return Number(0!==e)},14:function(e){return Number(1==e?0:2==e?1:3==e?2:3)},15:function(e){return Number(e%10==1&&e%100!=11?0:e%10>=2&&(e%100<10||e%100>=20)?1:2)},16:function(e){return Number(e%10==1&&e%100!=11?0:0!==e?1:2)},17:function(e){return Number(1==e||e%10==1&&e%100!=11?0:1)},18:function(e){return 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t+e})}},{key:"getSuffixes",value:function(e){var t=this,n=this.getRule(e);return n?n.numbers.map(function(n){return t.getSuffix(e,n)}):[]}},{key:"getSuffix",value:function(e,t){var n=this,i=this.getRule(e);if(i){var o=i.noAbs?i.plurals(t):i.plurals(Math.abs(t)),r=i.numbers[o];this.options.simplifyPluralSuffix&&2===i.numbers.length&&1===i.numbers[0]&&(2===r?r="plural":1===r&&(r=""));var a=function(){return n.options.prepend&&r.toString()?n.options.prepend+r.toString():r.toString()};return"v1"===this.options.compatibilityJSON?1===r?"":"number"==typeof r?"_plural_".concat(r.toString()):a():"v2"===this.options.compatibilityJSON?a():this.options.simplifyPluralSuffix&&2===i.numbers.length&&1===i.numbers[0]?a():this.options.prepend&&o.toString()?this.options.prepend+o.toString():o.toString()}return this.logger.warn("no plural rule found for: ".concat(e)),""}}]),e}(),V=function(){function e(){var t=arguments.length>0&&void 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0!==t.useRawValueToEscape&&t.useRawValueToEscape,this.prefix=t.prefix?k(t.prefix):t.prefixEscaped||"{{",this.suffix=t.suffix?k(t.suffix):t.suffixEscaped||"}}",this.formatSeparator=t.formatSeparator?t.formatSeparator:t.formatSeparator||",",this.unescapePrefix=t.unescapeSuffix?"":t.unescapePrefix||"-",this.unescapeSuffix=this.unescapePrefix?"":t.unescapeSuffix||"",this.nestingPrefix=t.nestingPrefix?k(t.nestingPrefix):t.nestingPrefixEscaped||k("$t("),this.nestingSuffix=t.nestingSuffix?k(t.nestingSuffix):t.nestingSuffixEscaped||k(")"),this.nestingOptionsSeparator=t.nestingOptionsSeparator?t.nestingOptionsSeparator:t.nestingOptionsSeparator||",",this.maxReplaces=t.maxReplaces?t.maxReplaces:1e3,this.alwaysFormat=void 0!==t.alwaysFormat&&t.alwaysFormat,this.resetRegExp()}},{key:"reset",value:function(){this.options&&this.init(this.options)}},{key:"resetRegExp",value:function(){var e="".concat(this.prefix,"(.+?)").concat(this.suffix);this.regexp=new RegExp(e,"g");var t="".concat(this.prefix).concat(this.unescapePrefix,"(.+?)").concat(this.unescapeSuffix).concat(this.suffix);this.regexpUnescape=new RegExp(t,"g");var n="".concat(this.nestingPrefix,"(.+?)").concat(this.nestingSuffix);this.nestingRegexp=new RegExp(n,"g")}},{key:"interpolate",value:function(e,t,i,o){var r,a,s,u=this,l=this.options&&this.options.interpolation&&this.options.interpolation.defaultVariables||{};function c(e){return e.replace(/\$/g,"$$$$")}var p=function(e){if(e.indexOf(u.formatSeparator)<0){var r=b(t,l,e);return u.alwaysFormat?u.format(r,void 0,i,n({},o,t,{interpolationkey:e})):r}var a=e.split(u.formatSeparator),s=a.shift().trim(),c=a.join(u.formatSeparator).trim();return u.format(b(t,l,s),c,i,n({},o,t,{interpolationkey:s}))};this.resetRegExp();var g=o&&o.missingInterpolationHandler||this.options.missingInterpolationHandler,f=o&&o.interpolation&&o.interpolation.skipOnVariables||this.options.interpolation.skipOnVariables;return[{regex:this.regexpUnescape,safeValue:function(e){return c(e)}},{regex:this.regexp,safeValue:function(e){return u.escapeValue?c(u.escape(e)):c(e)}}].forEach(function(t){for(s=0;r=t.regex.exec(e);){if(void 0===(a=p(r[1].trim())))if("function"==typeof g){var n=g(e,r,o);a="string"==typeof n?n:""}else{if(f){a=r[0];continue}u.logger.warn("missed to pass in variable ".concat(r[1]," for interpolating ").concat(e)),a=""}else"string"==typeof a||u.useRawValueToEscape||(a=d(a));var i=t.safeValue(a);if(e=e.replace(r[0],i),f?(t.regex.lastIndex+=i.length,t.regex.lastIndex-=r[0].length):t.regex.lastIndex=0,++s>=u.maxReplaces)break}}),e}},{key:"nest",value:function(e,t){var i,o,r=this,a=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},s=n({},a);function u(e,t){var i=this.nestingOptionsSeparator;if(e.indexOf(i)<0)return e;var o=e.split(new RegExp("".concat(i,"[ ]*{"))),r="{".concat(o[1]);e=o[0],r=(r=this.interpolate(r,s)).replace(/'/g,'"');try{s=JSON.parse(r),t&&(s=n({},t,s))}catch(t){return this.logger.warn("failed parsing options string in nesting for key ".concat(e),t),"".concat(e).concat(i).concat(r)}return delete s.defaultValue,e}for(s.applyPostProcessor=!1,delete s.defaultValue;i=this.nestingRegexp.exec(e);){var l=[],c=!1;if(-1!==i[0].indexOf(this.formatSeparator)&&!/{.*}/.test(i[1])){var p=i[1].split(this.formatSeparator).map(function(e){return e.trim()});i[1]=p.shift(),l=p,c=!0}if((o=t(u.call(this,i[1].trim(),s),s))&&i[0]===e&&"string"!=typeof o)return o;"string"!=typeof o&&(o=d(o)),o||(this.logger.warn("missed to resolve ".concat(i[1]," for nesting ").concat(e)),o=""),c&&(o=l.reduce(function(e,t){return r.format(e,t,a.lng,n({},a,{interpolationkey:i[1].trim()}))},o.trim())),e=e.replace(i[0],o),this.regexp.lastIndex=0}return e}}]),e}();var T=function(e){function t(e,n,o){var r,l=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{};return i(this,t),r=s(this,u(t).call(this)),w&&f.call(a(r)),r.backend=e,r.store=n,r.services=o,r.languageUtils=o.languageUtils,r.options=l,r.logger=g.create("backendConnector"),r.state={},r.queue=[],r.backend&&r.backend.init&&r.backend.init(o,l.backend,l),r}return c(t,f),r(t,[{key:"queueLoad",value:function(e,t,n,i){var o=this,r=[],a=[],s=[],u=[];return e.forEach(function(e){var i=!0;t.forEach(function(t){var s="".concat(e,"|").concat(t);!n.reload&&o.store.hasResourceBundle(e,t)?o.state[s]=2:o.state[s]<0||(1===o.state[s]?a.indexOf(s)<0&&a.push(s):(o.state[s]=1,i=!1,a.indexOf(s)<0&&a.push(s),r.indexOf(s)<0&&r.push(s),u.indexOf(t)<0&&u.push(t)))}),i||s.push(e)}),(r.length||a.length)&&this.queue.push({pending:a,loaded:{},errors:[],callback:i}),{toLoad:r,pending:a,toLoadLanguages:s,toLoadNamespaces:u}}},{key:"loaded",value:function(e,t,n){var i=e.split("|"),o=i[0],r=i[1];t&&this.emit("failedLoading",o,r,t),n&&this.store.addResourceBundle(o,r,n),this.state[e]=t?-1:2;var a={};this.queue.forEach(function(n){var i,s,u,l,c,p;i=n.loaded,s=r,l=v(i,[o],Object),c=l.obj,p=l.k,c[p]=c[p]||[],u&&(c[p]=c[p].concat(s)),u||c[p].push(s),function(e,t){for(var n=e.indexOf(t);-1!==n;)e.splice(n,1),n=e.indexOf(t)}(n.pending,e),t&&n.errors.push(t),0!==n.pending.length||n.done||(Object.keys(n.loaded).forEach(function(e){a[e]||(a[e]=[]),n.loaded[e].length&&n.loaded[e].forEach(function(t){a[e].indexOf(t)<0&&a[e].push(t)})}),n.done=!0,n.errors.length?n.callback(n.errors):n.callback())}),this.emit("loaded",a),this.queue=this.queue.filter(function(e){return!e.done})}},{key:"read",value:function(e,t,n){var i=this,o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,r=arguments.length>4&&void 0!==arguments[4]?arguments[4]:350,a=arguments.length>5?arguments[5]:void 0;return e.length?this.backend[n](e,t,function(s,u){s&&u&&o<5?setTimeout(function(){i.read.call(i,e,t,n,o+1,2*r,a)},r):a(s,u)}):a(null,{})}},{key:"prepareLoading",value:function(e,t){var n=this,i=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},o=arguments.length>3?arguments[3]:void 0;if(!this.backend)return this.logger.warn("No backend was added via i18next.use. Will not load resources."),o&&o();"string"==typeof e&&(e=this.languageUtils.toResolveHierarchy(e)),"string"==typeof t&&(t=[t]);var r=this.queueLoad(e,t,i,o);if(!r.toLoad.length)return r.pending.length||o(),null;r.toLoad.forEach(function(e){n.loadOne(e)})}},{key:"load",value:function(e,t,n){this.prepareLoading(e,t,{},n)}},{key:"reload",value:function(e,t,n){this.prepareLoading(e,t,{reload:!0},n)}},{key:"loadOne",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",i=e.split("|"),o=i[0],r=i[1];this.read(o,r,"read",void 0,void 0,function(i,a){i&&t.logger.warn("".concat(n,"loading namespace ").concat(r," for language ").concat(o," failed"),i),!i&&a&&t.logger.log("".concat(n,"loaded namespace ").concat(r," for language ").concat(o),a),t.loaded(e,i,a)})}},{key:"saveMissing",value:function(e,t,i,o,r){var a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{};this.services.utils&&this.services.utils.hasLoadedNamespace&&!this.services.utils.hasLoadedNamespace(t)?this.logger.warn('did not save key "'.concat(i,'" as the namespace "').concat(t,'" was not yet loaded'),"This means something IS WRONG in your setup. You access the t function before i18next.init / i18next.loadNamespace / i18next.changeLanguage was done. Wait for the callback or Promise to resolve before accessing it!!!"):null!=i&&""!==i&&(this.backend&&this.backend.create&&this.backend.create(e,t,i,o,null,n({},a,{isUpdate:r})),e&&e[0]&&this.store.addResource(e[0],t,i,o))}}]),t}();function A(e){return"string"==typeof e.ns&&(e.ns=[e.ns]),"string"==typeof e.fallbackLng&&(e.fallbackLng=[e.fallbackLng]),"string"==typeof e.fallbackNS&&(e.fallbackNS=[e.fallbackNS]),e.whitelist&&(e.whitelist&&e.whitelist.indexOf("cimode")<0&&(e.whitelist=e.whitelist.concat(["cimode"])),e.supportedLngs=e.whitelist),e.nonExplicitWhitelist&&(e.nonExplicitSupportedLngs=e.nonExplicitWhitelist),e.supportedLngs&&e.supportedLngs.indexOf("cimode")<0&&(e.supportedLngs=e.supportedLngs.concat(["cimode"])),e}function U(){}return new(function(t){function o(){var e,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments.length>1?arguments[1]:void 0;if(i(this,o),e=s(this,u(o).call(this)),w&&f.call(a(e)),e.options=A(t),e.services={},e.logger=g,e.modules={external:[]},n&&!e.isInitialized&&!t.isClone){if(!e.options.initImmediate)return e.init(t,n),s(e,a(e));setTimeout(function(){e.init(t,n)},0)}return e}return c(o,f),r(o,[{key:"init",value:function(){var t=this,i=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},o=arguments.length>1?arguments[1]:void 0;function r(e){return e?"function"==typeof e?new e:e:null}if("function"==typeof i&&(o=i,i={}),i.whitelist&&!i.supportedLngs&&this.logger.deprecate("whitelist",'option "whitelist" will be renamed to "supportedLngs" in the next major - please make sure to rename this option asap.'),i.nonExplicitWhitelist&&!i.nonExplicitSupportedLngs&&this.logger.deprecate("whitelist",'options "nonExplicitWhitelist" will be renamed to "nonExplicitSupportedLngs" in the next major - please make sure to rename this option asap.'),this.options=n({},{debug:!1,initImmediate:!0,ns:["translation"],defaultNS:["translation"],fallbackLng:["dev"],fallbackNS:!1,whitelist:!1,nonExplicitWhitelist:!1,supportedLngs:!1,nonExplicitSupportedLngs:!1,load:"all",preload:!1,simplifyPluralSuffix:!0,keySeparator:".",nsSeparator:":",pluralSeparator:"_",contextSeparator:"_",partialBundledLanguages:!1,saveMissing:!1,updateMissing:!1,saveMissingTo:"fallback",saveMissingPlurals:!0,missingKeyHandler:!1,missingInterpolationHandler:!1,postProcess:!1,postProcessPassResolved:!1,returnNull:!0,returnEmptyString:!0,returnObjects:!1,joinArrays:!1,returnedObjectHandler:!1,parseMissingKeyHandler:!1,appendNamespaceToMissingKey:!1,appendNamespaceToCIMode:!1,overloadTranslationOptionHandler:function(t){var n={};if("object"===e(t[1])&&(n=t[1]),"string"==typeof t[1]&&(n.defaultValue=t[1]),"string"==typeof t[2]&&(n.tDescription=t[2]),"object"===e(t[2])||"object"===e(t[3])){var i=t[3]||t[2];Object.keys(i).forEach(function(e){n[e]=i[e]})}return n},interpolation:{escapeValue:!0,format:function(e,t,n,i){return e},prefix:"{{",suffix:"}}",formatSeparator:",",unescapePrefix:"-",nestingPrefix:"$t(",nestingSuffix:")",nestingOptionsSeparator:",",maxReplaces:1e3,skipOnVariables:!1}},this.options,A(i)),this.format=this.options.interpolation.format,o||(o=U),!this.options.isClone){this.modules.logger?g.init(r(this.modules.logger),this.options):g.init(null,this.options);var a=new j(this.options);this.store=new L(this.options.resources,this.options);var s=this.services;s.logger=g,s.resourceStore=this.store,s.languageUtils=a,s.pluralResolver=new F(a,{prepend:this.options.pluralSeparator,compatibilityJSON:this.options.compatibilityJSON,simplifyPluralSuffix:this.options.simplifyPluralSuffix}),s.interpolator=new V(this.options),s.utils={hasLoadedNamespace:this.hasLoadedNamespace.bind(this)},s.backendConnector=new T(r(this.modules.backend),s.resourceStore,s,this.options),s.backendConnector.on("*",function(e){for(var n=arguments.length,i=new Array(n>1?n-1:0),o=1;o<n;o++)i[o-1]=arguments[o];t.emit.apply(t,[e].concat(i))}),this.modules.languageDetector&&(s.languageDetector=r(this.modules.languageDetector),s.languageDetector.init(s,this.options.detection,this.options)),this.modules.i18nFormat&&(s.i18nFormat=r(this.modules.i18nFormat),s.i18nFormat.init&&s.i18nFormat.init(this)),this.translator=new R(this.services,this.options),this.translator.on("*",function(e){for(var n=arguments.length,i=new Array(n>1?n-1:0),o=1;o<n;o++)i[o-1]=arguments[o];t.emit.apply(t,[e].concat(i))}),this.modules.external.forEach(function(e){e.init&&e.init(t)})}if(this.options.fallbackLng&&!this.services.languageDetector&&!this.options.lng){var u=this.services.languageUtils.getFallbackCodes(this.options.fallbackLng);u.length>0&&"dev"!==u[0]&&(this.options.lng=u[0])}this.services.languageDetector||this.options.lng||this.logger.warn("init: no languageDetector is used and no lng is defined");["getResource","hasResourceBundle","getResourceBundle","getDataByLanguage"].forEach(function(e){t[e]=function(){var n;return(n=t.store)[e].apply(n,arguments)}});["addResource","addResources","addResourceBundle","removeResourceBundle"].forEach(function(e){t[e]=function(){var n;return(n=t.store)[e].apply(n,arguments),t}});var l=h(),c=function(){var e=function(e,n){t.isInitialized&&t.logger.warn("init: i18next is already initialized. You should call init just once!"),t.isInitialized=!0,t.options.isClone||t.logger.log("initialized",t.options),t.emit("initialized",t.options),l.resolve(n),o(e,n)};if(t.languages&&"v1"!==t.options.compatibilityAPI&&!t.isInitialized)return e(null,t.t.bind(t));t.changeLanguage(t.options.lng,e)};return this.options.resources||!this.options.initImmediate?c():setTimeout(c,0),l}},{key:"loadResources",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:U,i="string"==typeof e?e:this.language;if("function"==typeof e&&(n=e),!this.options.resources||this.options.partialBundledLanguages){if(i&&"cimode"===i.toLowerCase())return n();var o=[],r=function(e){e&&t.services.languageUtils.toResolveHierarchy(e).forEach(function(e){o.indexOf(e)<0&&o.push(e)})};if(i)r(i);else this.services.languageUtils.getFallbackCodes(this.options.fallbackLng).forEach(function(e){return r(e)});this.options.preload&&this.options.preload.forEach(function(e){return r(e)}),this.services.backendConnector.load(o,this.options.ns,n)}else n(null)}},{key:"reloadResources",value:function(e,t,n){var i=h();return e||(e=this.languages),t||(t=this.options.ns),n||(n=U),this.services.backendConnector.reload(e,t,function(e){i.resolve(),n(e)}),i}},{key:"use",value:function(e){if(!e)throw new Error("You are passing an undefined module! Please check the object you are passing to i18next.use()");if(!e.type)throw new Error("You are passing a wrong module! Please check the object you are passing to i18next.use()");return"backend"===e.type&&(this.modules.backend=e),("logger"===e.type||e.log&&e.warn&&e.error)&&(this.modules.logger=e),"languageDetector"===e.type&&(this.modules.languageDetector=e),"i18nFormat"===e.type&&(this.modules.i18nFormat=e),"postProcessor"===e.type&&O.addPostProcessor(e),"3rdParty"===e.type&&this.modules.external.push(e),this}},{key:"changeLanguage",value:function(e,t){var n=this;this.isLanguageChangingTo=e;var i=h();this.emit("languageChanging",e);var o=function(e){var o="string"==typeof e?e:n.services.languageUtils.getBestMatchFromCodes(e);o&&(n.language||(n.language=o,n.languages=n.services.languageUtils.toResolveHierarchy(o)),n.translator.language||n.translator.changeLanguage(o),n.services.languageDetector&&n.services.languageDetector.cacheUserLanguage(o)),n.loadResources(o,function(e){!function(e,o){o?(n.language=o,n.languages=n.services.languageUtils.toResolveHierarchy(o),n.translator.changeLanguage(o),n.isLanguageChangingTo=void 0,n.emit("languageChanged",o),n.logger.log("languageChanged",o)):n.isLanguageChangingTo=void 0,i.resolve(function(){return n.t.apply(n,arguments)}),t&&t(e,function(){return n.t.apply(n,arguments)})}(e,o)})};return e||!this.services.languageDetector||this.services.languageDetector.async?!e&&this.services.languageDetector&&this.services.languageDetector.async?this.services.languageDetector.detect(o):o(e):o(this.services.languageDetector.detect()),i}},{key:"getFixedT",value:function(t,i){var o=this,r=function t(i,r){var a;if("object"!==e(r)){for(var s=arguments.length,u=new Array(s>2?s-2:0),l=2;l<s;l++)u[l-2]=arguments[l];a=o.options.overloadTranslationOptionHandler([i,r].concat(u))}else a=n({},r);return a.lng=a.lng||t.lng,a.lngs=a.lngs||t.lngs,a.ns=a.ns||t.ns,o.t(i,a)};return"string"==typeof t?r.lng=t:r.lngs=t,r.ns=i,r}},{key:"t",value:function(){var e;return this.translator&&(e=this.translator).translate.apply(e,arguments)}},{key:"exists",value:function(){var e;return this.translator&&(e=this.translator).exists.apply(e,arguments)}},{key:"setDefaultNamespace",value:function(e){this.options.defaultNS=e}},{key:"hasLoadedNamespace",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(!this.isInitialized)return this.logger.warn("hasLoadedNamespace: i18next was not initialized",this.languages),!1;if(!this.languages||!this.languages.length)return this.logger.warn("hasLoadedNamespace: i18n.languages were undefined or empty",this.languages),!1;var i=this.languages[0],o=!!this.options&&this.options.fallbackLng,r=this.languages[this.languages.length-1];if("cimode"===i.toLowerCase())return!0;var a=function(e,n){var i=t.services.backendConnector.state["".concat(e,"|").concat(n)];return-1===i||2===i};if(n.precheck){var s=n.precheck(this,a);if(void 0!==s)return s}return!!this.hasResourceBundle(i,e)||(!this.services.backendConnector.backend||!(!a(i,e)||o&&!a(r,e)))}},{key:"loadNamespaces",value:function(e,t){var n=this,i=h();return this.options.ns?("string"==typeof e&&(e=[e]),e.forEach(function(e){n.options.ns.indexOf(e)<0&&n.options.ns.push(e)}),this.loadResources(function(e){i.resolve(),t&&t(e)}),i):(t&&t(),Promise.resolve())}},{key:"loadLanguages",value:function(e,t){var n=h();"string"==typeof e&&(e=[e]);var i=this.options.preload||[],o=e.filter(function(e){return i.indexOf(e)<0});return o.length?(this.options.preload=i.concat(o),this.loadResources(function(e){n.resolve(),t&&t(e)}),n):(t&&t(),Promise.resolve())}},{key:"dir",value:function(e){if(e||(e=this.languages&&this.languages.length>0?this.languages[0]:this.language),!e)return"rtl";return["ar","shu","sqr","ssh","xaa","yhd","yud","aao","abh","abv","acm","acq","acw","acx","acy","adf","ads","aeb","aec","afb","ajp","apc","apd","arb","arq","ars","ary","arz","auz","avl","ayh","ayl","ayn","ayp","bbz","pga","he","iw","ps","pbt","pbu","pst","prp","prd","ug","ur","ydd","yds","yih","ji","yi","hbo","men","xmn","fa","jpr","peo","pes","prs","dv","sam"].indexOf(this.services.languageUtils.getLanguagePartFromCode(e))>=0?"rtl":"ltr"}},{key:"createInstance",value:function(){return new o(arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},arguments.length>1?arguments[1]:void 0)}},{key:"cloneInstance",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:U,r=n({},this.options,t,{isClone:!0}),a=new o(r);return["store","services","language"].forEach(function(t){a[t]=e[t]}),a.services=n({},this.services),a.services.utils={hasLoadedNamespace:a.hasLoadedNamespace.bind(a)},a.translator=new R(a.services,a.options),a.translator.on("*",function(e){for(var t=arguments.length,n=new Array(t>1?t-1:0),i=1;i<t;i++)n[i-1]=arguments[i];a.emit.apply(a,[e].concat(n))}),a.init(r,i),a.translator.options=a.options,a.translator.backendConnector.services.utils={hasLoadedNamespace:a.hasLoadedNamespace.bind(a)},a}}]),o}())});
diff --git a/activities/Blockrain.activity/lib/l10n.js b/activities/Blockrain.activity/lib/l10n.js
new file mode 100644
index 000000000..137187812
--- /dev/null
+++ b/activities/Blockrain.activity/lib/l10n.js
@@ -0,0 +1,57 @@
+define(['i18next.min', 'axios.min'], function (i18next, axios) {
+    const l10n = {};
+    let initialized = false;
+
+    l10n.init = async (lang) => {
+        await i18next.init({
+            lng: lang,
+            debug: false,
+            fallbackLng: "en",
+            resources: {}
+        }).then(() => {
+            l10n.switchTo(lang);
+        });
+    };
+
+    l10n.get = (key) => {
+        return i18next.t(key);
+    };
+
+    l10n.loadLanguageResource = (lang) => {
+        return new Promise((resolve, reject) => {
+            axios.get("./locales/" + lang + ".json").then((response) => {
+                resolve(response.data);
+            }).catch((error) => {
+                console.log("Failed to load " + lang + " language: " + error);
+                resolve(null); // Resolve with null to indicate failure
+            });
+        });
+    };
+
+    l10n.switchTo = (lang) => {
+        if (!i18next.hasResourceBundle(lang, "translation")) {
+            console.log("Loading " + lang + " language");
+            l10n.loadLanguageResource(lang).then((locales) => {
+                if (locales !== null) {
+                    i18next.addResourceBundle(lang, "translation", locales);
+                } else {
+                    l10n.init("en");
+                }
+                i18next.changeLanguage(lang);
+                initialized = true;
+                triggerLocalizedEvent();
+            });
+        } else {
+            i18next.changeLanguage(lang);
+            initialized = true;
+            triggerLocalizedEvent();
+        }
+    };
+
+    function triggerLocalizedEvent() {
+        const event = new Event("localized");
+        window.dispatchEvent(event);
+    };
+
+    return l10n;
+});
diff --git a/activities/Blockrain.activity/lib/sugar-web/activity/activity.js b/activities/Blockrain.activity/lib/sugar-web/activity/activity.js
index c3524b432..2fa8f23de 100644
--- a/activities/Blockrain.activity/lib/sugar-web/activity/activity.js
+++ b/activities/Blockrain.activity/lib/sugar-web/activity/activity.js
@@ -1,12 +1,11 @@
-define(["webL10n",
-        "sugar-web/activity/shortcut",
+define(["sugar-web/activity/shortcut",
         "sugar-web/bus",
         "sugar-web/env",
         "sugar-web/datastore",
 		"sugar-web/presence",
         "sugar-web/graphics/icon",
         "sugar-web/graphics/activitypalette"], function (
-    l10n, shortcut, bus, env, datastore, presence, icon, activitypalette) {
+    shortcut, bus, env, datastore, presence, icon, activitypalette) {
 
     'use strict';
 
@@ -22,7 +21,6 @@ define(["webL10n",
     activity.setup = function () {
         bus.listen();
 
-        l10n.start();
 
         function sendPauseEvent() {
 			var pauseEvent = document.createEvent("CustomEvent");
diff --git a/activities/Blockrain.activity/lib/sugar-web/env.js b/activities/Blockrain.activity/lib/sugar-web/env.js
index cb0ccd5cb..2492014c3 100644
--- a/activities/Blockrain.activity/lib/sugar-web/env.js
+++ b/activities/Blockrain.activity/lib/sugar-web/env.js
@@ -31,7 +31,8 @@ define(function () {
 			} else {
 				window.top.sugar.environment.user = JSON.parse(localStorage.sugar_settings);
 				setTimeout(function () {
-					callback(null, window.top.sugar.environment);
+                    var environmentValue = window.top.sugar.environment;
+                    callback(null, environmentValue);
 				}, 0);
 			}
         } else if (env.isStandalone()) {
diff --git a/activities/Blockrain.activity/lib/sugar-web/package.json b/activities/Blockrain.activity/lib/sugar-web/package.json
index f2e3555b2..109f8e6a7 100644
--- a/activities/Blockrain.activity/lib/sugar-web/package.json
+++ b/activities/Blockrain.activity/lib/sugar-web/package.json
@@ -2,7 +2,7 @@
   "volo": {
     "baseUrl": "lib",
     "dependencies": {
-      "webL10n": "github:sugarlabs/webL10n",
+
       "mustache": "github:janl/mustache.js/0.7.2",
       "text": "github:requirejs/text"
     }
diff --git a/activities/Blockrain.activity/lib/sugar-web/test/loader.js b/activities/Blockrain.activity/lib/sugar-web/test/loader.js
index aec983753..aa4c936ef 100644
--- a/activities/Blockrain.activity/lib/sugar-web/test/loader.js
+++ b/activities/Blockrain.activity/lib/sugar-web/test/loader.js
@@ -10,7 +10,7 @@ requirejs.config({
         "sugar-web": ".",
         "mustache": "lib/mustache",
         "text": "lib/text",
-        "webL10n": "lib/webL10n"
+
     },
 
     // ask Require.js to load these files (all our tests)
@@ -19,3 +19,4 @@ requirejs.config({
     // start test run, once Require.js is done
     callback: window.__karma__.start
 });
+
diff --git a/activities/Blockrain.activity/lib/tutorial.js b/activities/Blockrain.activity/lib/tutorial.js
index e18973c5b..7665e4572 100644
--- a/activities/Blockrain.activity/lib/tutorial.js
+++ b/activities/Blockrain.activity/lib/tutorial.js
@@ -1,4 +1,4 @@
-define(["webL10n"], function (l10n) {
+define(["l10n"], function (l10n) {
 	var tutorial = {};
 	tutorial.start = function() {
 		var steps = [
@@ -60,4 +60,4 @@ define(["webL10n"], function (l10n) {
 	};
 
 	return tutorial;
-});
\ No newline at end of file
+});
diff --git a/activities/Blockrain.activity/lib/webL10n.js b/activities/Blockrain.activity/lib/webL10n.js
deleted file mode 100644
index f76d66a5e..000000000
--- a/activities/Blockrain.activity/lib/webL10n.js
+++ /dev/null
@@ -1,1029 +0,0 @@
-/**
- * Copyright (c) 2011-2013 Fabien Cazenave, Mozilla.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-/*jshint browser: true, devel: true, es5: true, globalstrict: true */
-'use strict';
-
-define(function (require) {
-  var gL10nData = {};
-  var gTextData = '';
-  var gTextProp = 'textContent';
-  var gLanguage = '';
-  var gMacros = {};
-  var gReadyState = 'loading';
-
-  /**
-   * Synchronously loading l10n resources significantly minimizes flickering
-   * from displaying the app with non-localized strings and then updating the
-   * strings. Although this will block all script execution on this page, we
-   * expect that the l10n resources are available locally on flash-storage.
-   *
-   * As synchronous XHR is generally considered as a bad idea, we're still
-   * loading l10n resources asynchronously -- but we keep this in a setting,
-   * just in case... and applications using this library should hide their
-   * content until the `localized' event happens.
-   */
-
-  var gAsyncResourceLoading = true; // read-only
-
-
-  /**
-   * Debug helpers
-   *
-   *   gDEBUG == 0: don't display any console message
-   *   gDEBUG == 1: display only warnings, not logs
-   *   gDEBUG == 2: display all console messages
-   */
-
-  var gDEBUG = 1;
-
-  function consoleLog(message) {
-    if (gDEBUG >= 2) {
-      console.log('[l10n] ' + message);
-    }
-  };
-
-  function consoleWarn(message) {
-    if (gDEBUG) {
-      console.warn('[l10n] ' + message);
-    }
-  };
-
-
-  /**
-   * DOM helpers for the so-called "HTML API".
-   *
-   * These functions are written for modern browsers. For old versions of IE,
-   * they're overridden in the 'startup' section at the end of this file.
-   */
-
-  function getL10nResourceLinks() {
-    return document.querySelectorAll('link[type="application/l10n"]');
-  }
-
-  function getL10nDictionary() {
-    var script = document.querySelector('script[type="application/l10n"]');
-    // TODO: support multiple and external JSON dictionaries
-    return script ? JSON.parse(script.innerHTML) : null;
-  }
-
-  function getTranslatableChildren(element) {
-    return element ? element.querySelectorAll('*[data-l10n-id]') : [];
-  }
-
-  function getL10nAttributes(element) {
-    if (!element)
-      return {};
-
-    var l10nId = element.getAttribute('data-l10n-id');
-    var l10nArgs = element.getAttribute('data-l10n-args');
-    var args = {};
-    if (l10nArgs) {
-      try {
-        args = JSON.parse(l10nArgs);
-      } catch (e) {
-        consoleWarn('could not parse arguments for #' + l10nId);
-      }
-    }
-    return { id: l10nId, args: args };
-  }
-
-  function fireL10nReadyEvent(lang) {
-    var evtObject = document.createEvent('Event');
-    evtObject.initEvent('localized', true, false);
-    evtObject.language = lang;
-    document.dispatchEvent(evtObject);
-  }
-
-  function xhrLoadText(url, onSuccess, onFailure, asynchronous) {
-    onSuccess = onSuccess || function _onSuccess(data) {};
-    onFailure = onFailure || function _onFailure() {
-      consoleWarn(url + ' not found.');
-    };
-
-    var xhr = new XMLHttpRequest();
-    xhr.open('GET', url, asynchronous);
-    if (xhr.overrideMimeType) {
-      xhr.overrideMimeType('text/plain; charset=utf-8');
-    }
-    xhr.onreadystatechange = function() {
-      if (xhr.readyState == 4) {
-        if (xhr.status == 200 || xhr.status === 0) {
-          onSuccess(xhr.responseText);
-        } else {
-          onFailure();
-        }
-      }
-    };
-    xhr.onerror = onFailure;
-    xhr.ontimeout = onFailure;
-
-    // in Firefox OS with the app:// protocol, trying to XHR a non-existing
-    // URL will raise an exception here -- hence this ugly try...catch.
-    try {
-      xhr.send(null);
-    } catch (e) {
-      onFailure();
-    }
-  }
-
-
-  /**
-   * l10n resource parser:
-   *  - reads (async XHR) the l10n resource matching `lang';
-   *  - imports linked resources (synchronously) when specified;
-   *  - parses the text data (fills `gL10nData' and `gTextData');
-   *  - triggers success/failure callbacks when done.
-   *
-   * @param {string} href
-   *    URL of the l10n resource to parse.
-   *
-   * @param {string} lang
-   *    locale (language) to parse.
-   *
-   * @param {Function} successCallback
-   *    triggered when the l10n resource has been successully parsed.
-   *
-   * @param {Function} failureCallback
-   *    triggered when the an error has occured.
-   *
-   * @return {void}
-   *    uses the following global variables: gL10nData, gTextData, gTextProp.
-   */
-
-  function parseResource(href, lang, successCallback, failureCallback) {
-    var baseURL = href.replace(/[^\/]*$/, '') || './';
-
-    // handle escaped characters (backslashes) in a string
-    function evalString(text) {
-      if (text.lastIndexOf('\\') < 0)
-        return text;
-      return text.replace(/\\\\/g, '\\')
-                 .replace(/\\n/g, '\n')
-                 .replace(/\\r/g, '\r')
-                 .replace(/\\t/g, '\t')
-                 .replace(/\\b/g, '\b')
-                 .replace(/\\f/g, '\f')
-                 .replace(/\\{/g, '{')
-                 .replace(/\\}/g, '}')
-                 .replace(/\\"/g, '"')
-                 .replace(/\\'/g, "'");
-    }
-
-    // parse *.properties text data into an l10n dictionary
-    function parseProperties(text) {
-      var dictionary = [];
-
-      // token expressions
-      var reBlank = /^\s*|\s*$/;
-      var reComment = /^\s*#|^\s*$/;
-      var reSection = /^\s*\[(.*)\]\s*$/;
-      var reImport = /^\s*@import\s+url\((.*)\)\s*$/i;
-      var reSplit = /^([^=\s]*)\s*=\s*(.+)$/; // TODO: escape EOLs with '\'
-
-      // parse the *.properties file into an associative array
-      function parseRawLines(rawText, extendedSyntax) {
-        var entries = rawText.replace(reBlank, '').split(/[\r\n]+/);
-        var currentLang = '*';
-        var genericLang = lang.replace(/-[a-z]+$/i, '');
-        var skipLang = false;
-        var match = '';
-
-        for (var i = 0; i < entries.length; i++) {
-          var line = entries[i];
-
-          // comment or blank line?
-          if (reComment.test(line))
-            continue;
-
-          // the extended syntax supports [lang] sections and @import rules
-          if (extendedSyntax) {
-            if (reSection.test(line)) { // section start?
-              match = reSection.exec(line);
-              currentLang = match[1];
-              skipLang = (currentLang !== '*') &&
-                  (currentLang !== lang) && (currentLang !== genericLang);
-              continue;
-            } else if (skipLang) {
-              continue;
-            }
-            if (reImport.test(line)) { // @import rule?
-              match = reImport.exec(line);
-              loadImport(baseURL + match[1]); // load the resource synchronously
-            }
-          }
-
-          // key-value pair
-          var tmp = line.match(reSplit);
-          if (tmp && tmp.length == 3) {
-            dictionary[tmp[1]] = evalString(tmp[2]);
-          }
-        }
-      }
-
-      // import another *.properties file
-      function loadImport(url) {
-        xhrLoadText(url, function(content) {
-          parseRawLines(content, false); // don't allow recursive imports
-        }, null, false); // load synchronously
-      }
-
-      // fill the dictionary
-      parseRawLines(text, true);
-      return dictionary;
-    }
-
-    // load and parse l10n data (warning: global variables are used here)
-    xhrLoadText(href, function(response) {
-      gTextData += response; // mostly for debug
-
-      // parse *.properties text data into an l10n dictionary
-      var data = parseProperties(response);
-
-      // find attribute descriptions, if any
-      for (var key in data) {
-        var id, prop, index = key.lastIndexOf('.');
-        if (index > 0) { // an attribute has been specified
-          id = key.substring(0, index);
-          prop = key.substr(index + 1);
-        } else { // no attribute: assuming text content by default
-          id = key;
-          prop = gTextProp;
-        }
-        if (!gL10nData[id]) {
-          gL10nData[id] = {};
-        }
-        gL10nData[id][prop] = data[key];
-      }
-
-      // trigger callback
-      if (successCallback) {
-        successCallback();
-      }
-    }, failureCallback, gAsyncResourceLoading);
-  };
-
-  // load and parse all resources for the specified locale
-  function loadLocale(lang, callback) {
-    callback = callback || function _callback() {};
-
-    clear();
-    gLanguage = lang;
-
-    // check all <link type="application/l10n" href="..." /> nodes
-    // and load the resource files
-    var langLinks = getL10nResourceLinks();
-    var langCount = langLinks.length;
-    if (langCount == 0) {
-      // we might have a pre-compiled dictionary instead
-      var dict = getL10nDictionary();
-      if (dict && dict.locales && dict.default_locale) {
-        consoleLog('using the embedded JSON directory, early way out');
-        gL10nData = dict.locales[lang] || dict.locales[dict.default_locale];
-        callback();
-      } else {
-        consoleLog('no resource to load, early way out');
-      }
-      // early way out
-      fireL10nReadyEvent(lang);
-      gReadyState = 'complete';
-      return;
-    }
-
-    // start the callback when all resources are loaded
-    var onResourceLoaded = null;
-    var gResourceCount = 0;
-    onResourceLoaded = function() {
-      gResourceCount++;
-      if (gResourceCount >= langCount) {
-        callback();
-        fireL10nReadyEvent(lang);
-        gReadyState = 'complete';
-      }
-    };
-
-    // load all resource files
-    function l10nResourceLink(link) {
-      var href = link.href;
-      var type = link.type;
-      this.load = function(lang, callback) {
-        var applied = lang;
-        parseResource(href, lang, callback, function() {
-          consoleWarn(href + ' not found.');
-          applied = '';
-        });
-        return applied; // return lang if found, an empty string if not found
-      };
-    }
-
-    for (var i = 0; i < langCount; i++) {
-      var resource = new l10nResourceLink(langLinks[i]);
-      var rv = resource.load(lang, onResourceLoaded);
-      if (rv != lang) { // lang not found, used default resource instead
-        consoleWarn('"' + lang + '" resource not found');
-        gLanguage = '';
-      }
-    }
-  }
-
-  // clear all l10n data
-  function clear() {
-    gL10nData = {};
-    gTextData = '';
-    gLanguage = '';
-    // TODO: clear all non predefined macros.
-    // There's no such macro /yet/ but we're planning to have some...
-  }
-
-
-  /**
-   * Get rules for plural forms (shared with JetPack), see:
-   * http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html
-   * https://github.com/mozilla/addon-sdk/blob/master/python-lib/plural-rules-generator.p
-   *
-   * @param {string} lang
-   *    locale (language) used.
-   *
-   * @return {Function}
-   *    returns a function that gives the plural form name for a given integer:
-   *       var fun = getPluralRules('en');
-   *       fun(1)    -> 'one'
-   *       fun(0)    -> 'other'
-   *       fun(1000) -> 'other'.
-   */
-
-  function getPluralRules(lang) {
-    var locales2rules = {
-      'af': 3,
-      'ak': 4,
-      'am': 4,
-      'ar': 1,
-      'asa': 3,
-      'az': 0,
-      'be': 11,
-      'bem': 3,
-      'bez': 3,
-      'bg': 3,
-      'bh': 4,
-      'bm': 0,
-      'bn': 3,
-      'bo': 0,
-      'br': 20,
-      'brx': 3,
-      'bs': 11,
-      'ca': 3,
-      'cgg': 3,
-      'chr': 3,
-      'cs': 12,
-      'cy': 17,
-      'da': 3,
-      'de': 3,
-      'dv': 3,
-      'dz': 0,
-      'ee': 3,
-      'el': 3,
-      'en': 3,
-      'eo': 3,
-      'es': 3,
-      'et': 3,
-      'eu': 3,
-      'fa': 0,
-      'ff': 5,
-      'fi': 3,
-      'fil': 4,
-      'fo': 3,
-      'fr': 5,
-      'fur': 3,
-      'fy': 3,
-      'ga': 8,
-      'gd': 24,
-      'gl': 3,
-      'gsw': 3,
-      'gu': 3,
-      'guw': 4,
-      'gv': 23,
-      'ha': 3,
-      'haw': 3,
-      'he': 2,
-      'hi': 4,
-      'hr': 11,
-      'hu': 0,
-      'id': 0,
-      'ig': 0,
-      'ii': 0,
-      'is': 3,
-      'it': 3,
-      'iu': 7,
-      'ja': 0,
-      'jmc': 3,
-      'jv': 0,
-      'ka': 0,
-      'kab': 5,
-      'kaj': 3,
-      'kcg': 3,
-      'kde': 0,
-      'kea': 0,
-      'kk': 3,
-      'kl': 3,
-      'km': 0,
-      'kn': 0,
-      'ko': 0,
-      'ksb': 3,
-      'ksh': 21,
-      'ku': 3,
-      'kw': 7,
-      'lag': 18,
-      'lb': 3,
-      'lg': 3,
-      'ln': 4,
-      'lo': 0,
-      'lt': 10,
-      'lv': 6,
-      'mas': 3,
-      'mg': 4,
-      'mk': 16,
-      'ml': 3,
-      'mn': 3,
-      'mo': 9,
-      'mr': 3,
-      'ms': 0,
-      'mt': 15,
-      'my': 0,
-      'nah': 3,
-      'naq': 7,
-      'nb': 3,
-      'nd': 3,
-      'ne': 3,
-      'nl': 3,
-      'nn': 3,
-      'no': 3,
-      'nr': 3,
-      'nso': 4,
-      'ny': 3,
-      'nyn': 3,
-      'om': 3,
-      'or': 3,
-      'pa': 3,
-      'pap': 3,
-      'pl': 13,
-      'ps': 3,
-      'pt': 3,
-      'rm': 3,
-      'ro': 9,
-      'rof': 3,
-      'ru': 11,
-      'rwk': 3,
-      'sah': 0,
-      'saq': 3,
-      'se': 7,
-      'seh': 3,
-      'ses': 0,
-      'sg': 0,
-      'sh': 11,
-      'shi': 19,
-      'sk': 12,
-      'sl': 14,
-      'sma': 7,
-      'smi': 7,
-      'smj': 7,
-      'smn': 7,
-      'sms': 7,
-      'sn': 3,
-      'so': 3,
-      'sq': 3,
-      'sr': 11,
-      'ss': 3,
-      'ssy': 3,
-      'st': 3,
-      'sv': 3,
-      'sw': 3,
-      'syr': 3,
-      'ta': 3,
-      'te': 3,
-      'teo': 3,
-      'th': 0,
-      'ti': 4,
-      'tig': 3,
-      'tk': 3,
-      'tl': 4,
-      'tn': 3,
-      'to': 0,
-      'tr': 0,
-      'ts': 3,
-      'tzm': 22,
-      'uk': 11,
-      'ur': 3,
-      've': 3,
-      'vi': 0,
-      'vun': 3,
-      'wa': 4,
-      'wae': 3,
-      'wo': 0,
-      'xh': 3,
-      'xog': 3,
-      'yo': 0,
-      'zh': 0,
-      'zu': 3
-    };
-
-    // utility functions for plural rules methods
-    function isIn(n, list) {
-      return list.indexOf(n) !== -1;
-    }
-    function isBetween(n, start, end) {
-      return start <= n && n <= end;
-    }
-
-    // list of all plural rules methods:
-    // map an integer to the plural form name to use
-    var pluralRules = {
-      '0': function(n) {
-        return 'other';
-      },
-      '1': function(n) {
-        if ((isBetween((n % 100), 3, 10)))
-          return 'few';
-        if (n === 0)
-          return 'zero';
-        if ((isBetween((n % 100), 11, 99)))
-          return 'many';
-        if (n == 2)
-          return 'two';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '2': function(n) {
-        if (n !== 0 && (n % 10) === 0)
-          return 'many';
-        if (n == 2)
-          return 'two';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '3': function(n) {
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '4': function(n) {
-        if ((isBetween(n, 0, 1)))
-          return 'one';
-        return 'other';
-      },
-      '5': function(n) {
-        if ((isBetween(n, 0, 2)) && n != 2)
-          return 'one';
-        return 'other';
-      },
-      '6': function(n) {
-        if (n === 0)
-          return 'zero';
-        if ((n % 10) == 1 && (n % 100) != 11)
-          return 'one';
-        return 'other';
-      },
-      '7': function(n) {
-        if (n == 2)
-          return 'two';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '8': function(n) {
-        if ((isBetween(n, 3, 6)))
-          return 'few';
-        if ((isBetween(n, 7, 10)))
-          return 'many';
-        if (n == 2)
-          return 'two';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '9': function(n) {
-        if (n === 0 || n != 1 && (isBetween((n % 100), 1, 19)))
-          return 'few';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '10': function(n) {
-        if ((isBetween((n % 10), 2, 9)) && !(isBetween((n % 100), 11, 19)))
-          return 'few';
-        if ((n % 10) == 1 && !(isBetween((n % 100), 11, 19)))
-          return 'one';
-        return 'other';
-      },
-      '11': function(n) {
-        if ((isBetween((n % 10), 2, 4)) && !(isBetween((n % 100), 12, 14)))
-          return 'few';
-        if ((n % 10) === 0 ||
-            (isBetween((n % 10), 5, 9)) ||
-            (isBetween((n % 100), 11, 14)))
-          return 'many';
-        if ((n % 10) == 1 && (n % 100) != 11)
-          return 'one';
-        return 'other';
-      },
-      '12': function(n) {
-        if ((isBetween(n, 2, 4)))
-          return 'few';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '13': function(n) {
-        if ((isBetween((n % 10), 2, 4)) && !(isBetween((n % 100), 12, 14)))
-          return 'few';
-        if (n != 1 && (isBetween((n % 10), 0, 1)) ||
-            (isBetween((n % 10), 5, 9)) ||
-            (isBetween((n % 100), 12, 14)))
-          return 'many';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '14': function(n) {
-        if ((isBetween((n % 100), 3, 4)))
-          return 'few';
-        if ((n % 100) == 2)
-          return 'two';
-        if ((n % 100) == 1)
-          return 'one';
-        return 'other';
-      },
-      '15': function(n) {
-        if (n === 0 || (isBetween((n % 100), 2, 10)))
-          return 'few';
-        if ((isBetween((n % 100), 11, 19)))
-          return 'many';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '16': function(n) {
-        if ((n % 10) == 1 && n != 11)
-          return 'one';
-        return 'other';
-      },
-      '17': function(n) {
-        if (n == 3)
-          return 'few';
-        if (n === 0)
-          return 'zero';
-        if (n == 6)
-          return 'many';
-        if (n == 2)
-          return 'two';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '18': function(n) {
-        if (n === 0)
-          return 'zero';
-        if ((isBetween(n, 0, 2)) && n !== 0 && n != 2)
-          return 'one';
-        return 'other';
-      },
-      '19': function(n) {
-        if ((isBetween(n, 2, 10)))
-          return 'few';
-        if ((isBetween(n, 0, 1)))
-          return 'one';
-        return 'other';
-      },
-      '20': function(n) {
-        if ((isBetween((n % 10), 3, 4) || ((n % 10) == 9)) && !(
-            isBetween((n % 100), 10, 19) ||
-            isBetween((n % 100), 70, 79) ||
-            isBetween((n % 100), 90, 99)
-            ))
-          return 'few';
-        if ((n % 1000000) === 0 && n !== 0)
-          return 'many';
-        if ((n % 10) == 2 && !isIn((n % 100), [12, 72, 92]))
-          return 'two';
-        if ((n % 10) == 1 && !isIn((n % 100), [11, 71, 91]))
-          return 'one';
-        return 'other';
-      },
-      '21': function(n) {
-        if (n === 0)
-          return 'zero';
-        if (n == 1)
-          return 'one';
-        return 'other';
-      },
-      '22': function(n) {
-        if ((isBetween(n, 0, 1)) || (isBetween(n, 11, 99)))
-          return 'one';
-        return 'other';
-      },
-      '23': function(n) {
-        if ((isBetween((n % 10), 1, 2)) || (n % 20) === 0)
-          return 'one';
-        return 'other';
-      },
-      '24': function(n) {
-        if ((isBetween(n, 3, 10) || isBetween(n, 13, 19)))
-          return 'few';
-        if (isIn(n, [2, 12]))
-          return 'two';
-        if (isIn(n, [1, 11]))
-          return 'one';
-        return 'other';
-      }
-    };
-
-    // return a function that gives the plural form name for a given integer
-    var index = locales2rules[lang.replace(/-.*$/, '')];
-    if (!(index in pluralRules)) {
-      consoleWarn('plural form unknown for [' + lang + ']');
-      return function() { return 'other'; };
-    }
-    return pluralRules[index];
-  }
-
-  // pre-defined 'plural' macro
-  gMacros.plural = function(str, param, key, prop) {
-    var n = parseFloat(param);
-    if (isNaN(n))
-      return str;
-
-    // TODO: support other properties (l20n still doesn't...)
-    if (prop != gTextProp)
-      return str;
-
-    // initialize _pluralRules
-    if (!gMacros._pluralRules) {
-      gMacros._pluralRules = getPluralRules(gLanguage);
-    }
-    var index = '[' + gMacros._pluralRules(n) + ']';
-
-    // try to find a [zero|one|two] key if it's defined
-    if (n === 0 && (key + '[zero]') in gL10nData) {
-      str = gL10nData[key + '[zero]'][prop];
-    } else if (n == 1 && (key + '[one]') in gL10nData) {
-      str = gL10nData[key + '[one]'][prop];
-    } else if (n == 2 && (key + '[two]') in gL10nData) {
-      str = gL10nData[key + '[two]'][prop];
-    } else if ((key + index) in gL10nData) {
-      str = gL10nData[key + index][prop];
-    } else if ((key + '[other]') in gL10nData) {
-      str = gL10nData[key + '[other]'][prop];
-    }
-
-    return str;
-  };
-
-
-  /**
-   * l10n dictionary functions
-   */
-
-  // fetch an l10n object, warn if not found, apply `args' if possible
-  function getL10nData(key, args) {
-    var data = gL10nData[key];
-    if (!data) {
-      consoleWarn('#' + key + ' missing for [' + gLanguage + ']');
-    }
-
-    /** This is where l10n expressions should be processed.
-      * The plan is to support C-style expressions from the l20n project;
-      * until then, only two kinds of simple expressions are supported:
-      *   {[ index ]} and {{ arguments }}.
-      */
-    var rv = {};
-    for (var prop in data) {
-      var str = data[prop];
-      str = substIndexes(str, args, key, prop);
-      str = substArguments(str, args);
-      rv[prop] = str;
-    }
-    return rv;
-  }
-
-  // replace {[macros]} with their values
-  function substIndexes(str, args, key, prop) {
-    var reIndex = /\{\[\s*([a-zA-Z]+)\(([a-zA-Z]+)\)\s*\]\}/;
-    var reMatch = reIndex.exec(str);
-    if (!reMatch || !reMatch.length)
-      return str;
-
-    // an index/macro has been found
-    // Note: at the moment, only one parameter is supported
-    var macroName = reMatch[1];
-    var paramName = reMatch[2];
-    var param;
-    if (args && paramName in args) {
-      param = args[paramName];
-    } else if (paramName in gL10nData) {
-      param = gL10nData[paramName];
-    }
-
-    // there's no macro parser yet: it has to be defined in gMacros
-    if (macroName in gMacros) {
-      var macro = gMacros[macroName];
-      str = macro(str, param, key, prop);
-    }
-    return str;
-  }
-
-  // replace {{arguments}} with their values
-  function substArguments(str, args) {
-    var reArgs = /\{\{\s*([a-zA-Z\.]+)\s*\}\}/;
-    var match = reArgs.exec(str);
-    while (match) {
-      if (!match || match.length < 2)
-        return str; // argument key not found
-
-      var arg = match[1];
-      var sub = '';
-      if (arg in args) {
-        sub = args[arg];
-      } else if (arg in gL10nData) {
-        sub = gL10nData[arg][gTextProp];
-      } else {
-        consoleWarn('could not find argument {{' + arg + '}}');
-        return str;
-      }
-
-      str = str.substring(0, match.index) + sub +
-            str.substr(match.index + match[0].length);
-      match = reArgs.exec(str);
-    }
-    return str;
-  }
-
-  // translate an HTML element
-  function translateElement(element) {
-    var l10n = getL10nAttributes(element);
-    if (!l10n.id)
-      return;
-
-    // get the related l10n object
-    var data = getL10nData(l10n.id, l10n.args);
-    if (!data) {
-      consoleWarn('#' + l10n.id + ' missing for [' + gLanguage + ']');
-      return;
-    }
-
-    // translate element (TODO: security checks?)
-    // for the node content, replace the content of the first child textNode
-    // and clear other child textNodes
-    if (data[gTextProp]) { // XXX
-      if (getChildElementCount(element) === 0) {
-        element[gTextProp] = data[gTextProp];
-      } else {
-        var children = element.childNodes,
-            found = false;
-        for (var i = 0, l = children.length; i < l; i++) {
-          if (children[i].nodeType === 3 &&
-              /\S/.test(children[i].textContent)) { // XXX
-            // using nodeValue seems cross-browser
-            if (found) {
-              children[i].nodeValue = '';
-            } else {
-              children[i].nodeValue = data[gTextProp];
-              found = true;
-            }
-          }
-        }
-        if (!found) {
-          consoleWarn('unexpected error, could not translate element content');
-        }
-      }
-      delete data[gTextProp];
-    }
-
-    for (var k in data) {
-      element[k] = data[k];
-    }
-  }
-
-  // webkit browsers don't currently support 'children' on SVG elements...
-  function getChildElementCount(element) {
-    if (element.children) {
-      return element.children.length;
-    }
-    if (typeof element.childElementCount !== 'undefined') {
-      return element.childElementCount;
-    }
-    var count = 0;
-    for (var i = 0; i < element.childNodes.length; i++) {
-      count += element.nodeType === 1 ? 1 : 0;
-    }
-    return count;
-  }
-
-  // translate an HTML subtree
-  function translateFragment(element) {
-    element = element || document.documentElement;
-
-    // check all translatable children (= w/ a `data-l10n-id' attribute)
-    var children = getTranslatableChildren(element);
-    var elementCount = children.length;
-    for (var i = 0; i < elementCount; i++) {
-      translateElement(children[i]);
-    }
-
-    // translate element itself if necessary
-    translateElement(element);
-  }
-
-  // Startup & Public API
-
-  function l10nStartup() {
-    gReadyState = 'interactive';
-    consoleLog('loading [' + navigator.language + '] resources, ' +
-        (gAsyncResourceLoading ? 'asynchronously.' : 'synchronously.'));
-
-    // load the default locale and translate the document if required
-    if (document.documentElement.lang === navigator.language) {
-      loadLocale(navigator.language);
-    } else {
-      loadLocale(navigator.language, translateFragment);
-    }
-  }
-
-  // public API
-  var l10n = {
-    start: function() {
-      if (document.readyState === 'complete' ||
-        document.readyState === 'interactive') {
-        window.setTimeout(l10nStartup);
-      } else {
-        document.addEventListener('DOMContentLoaded', l10nStartup);
-      }
-    },
-
-    // get a localized string
-    get: function l10n_get(key, args, fallback) {
-      var data = getL10nData(key, args) || fallback;
-      if (data) {
-        return 'textContent' in data ? data.textContent : '';
-      }
-      return '{{' + key + '}}';
-    },
-
-    // get|set the document language and direction
-    get language() {
-      return {
-        // get|set the document language (ISO-639-1)
-        get code() { return gLanguage; },
-        set code(lang) { loadLocale(lang, translateFragment); },
-
-        // get the direction (ltr|rtl) of the current language
-        get direction() {
-          // http://www.w3.org/International/questions/qa-scripts
-          // Arabic, Hebrew, Farsi, Pashto, Urdu
-          var rtlList = ['ar', 'he', 'fa', 'ps', 'ur'];
-          return (rtlList.indexOf(gLanguage) >= 0) ? 'rtl' : 'ltr';
-        }
-      };
-    },
-
-    // translate an element or document fragment
-    translate: translateFragment,
-
-    // get (a clone of) the dictionary for the current locale
-    get dictionary() { return JSON.parse(JSON.stringify(gL10nData)); },
-
-    // this can be used to prevent race conditions
-    get readyState() { return gReadyState; },
-    ready: function l10n_ready(callback) {
-      if (!callback)
-        return;
-
-      if (gReadyState == 'complete') {
-        window.setTimeout(callback);
-      } else {
-        window.addEventListener('localized', callback);
-      }
-    }
-  };
-
-  return l10n;
-});
diff --git a/activities/Blockrain.activity/locale.ini b/activities/Blockrain.activity/locale.ini
deleted file mode 100644
index a5d7b39ce..000000000
--- a/activities/Blockrain.activity/locale.ini
+++ /dev/null
@@ -1,95 +0,0 @@
-
-[*]
-TutoPrev=Prev
-TutoNext=Next
-TutoEnd=End
-TutoExplainTitle=Blockrain
-TutoExplainContent=Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game
-TutoCanvasTitle=Rules
-TutoCanvasContent=The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)
-TutoThemeTitle=Theme
-TutoThemeContent=Click here to change the theme of the game
-TutoRotateTitle=Rotate
-TutoRotateContent=Click here to rotate the incoming blocks clockwise
-TutoDownTitle=Move Down
-TutoDownContent=Click here to move the incoming blocks in downward direction
-TutoLeftTitle=Move Left
-TutoLeftContent=Click here to move the incoming blocks in left direction
-TutoRightTitle=Move Right
-TutoRightContent=Click here to move the incoming blocks in right direction
-
-[en]
-TutoPrev=Prev
-TutoNext=Next
-TutoEnd=End
-TutoExplainTitle=Blockrain
-TutoExplainContent=Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game
-TutoCanvasTitle=Rules
-TutoCanvasContent=The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)
-TutoThemeTitle=Theme
-TutoThemeContent=Click here to change the theme of the game
-TutoRotateTitle=Rotate
-TutoRotateContent=Click here to rotate the incoming blocks clockwise
-TutoDownTitle=Move Down
-TutoDownContent=Click here to move the incoming blocks in downward direction
-TutoLeftTitle=Move Left
-TutoLeftContent=Click here to move the incoming blocks in left direction
-TutoRightTitle=Move Right
-TutoRightContent=Click here to move the incoming blocks in right direction
-
-[es]
-TutoPrev=Ant
-TutoNext=Sig
-TutoEnd=Fin
-TutoExplainTitle=Lluvia de bloques
-TutoExplainContent=Bienvenido a la actividad "Lluvia de bloques". En "Lluvia de bloques", el alumno jugará a un puzzle en el que tendrá que encajar piezas y que está inspirado en el videojuego clásico Tetris
-TutoCanvasTitle=Reglas
-TutoCanvasContent=El objetivo del juego es manipular los bloques que aparezcan con una serie limitada de movimientos que te permitan crear líneas horizontales. Al rellenar espacios vacíos en horizontal, eliminarás la línea asociada. La partida se terminará si tus piezas alcanzan la parte superior de la pantalla
-TutoThemeTitle=Temática
-TutoThemeContent=Haz clic aquí para cambiar la temática del juego
-TutoRotateTitle=Rotar
-TutoRotateContent=Haz clic aquí para rotar los bloques que aparezcan en sentido horario
-TutoDownTitle=Mover hacia abajo
-TutoDownContent=Haz clic aquí para mover los bloques que aparezcan hacia abajo
-TutoLeftTitle=Mover a la izquierda
-TutoLeftContent=Haz clic aquí para mover los bloques que aparezcan a la izquierda
-TutoRightTitle=Mover a la derecha
-TutoRightContent=Haz clic aquí para mover los bloques que aparezcan a la derecha
-
-[fr]
-TutoPrev=Préc
-TutoNext=Suiv
-TutoEnd=Fin
-TutoExplainTitle=Blockrain
-TutoExplainContent=Bienvenue dans l'activité Blockrain. Blockrain est un puzzle avec des blocs, inspiré du grand classique Tetris
-TutoCanvasTitle=Règles
-TutoCanvasContent=L'objectif du jeu est de manipuler les blocs pour créer des lignes horizontales. Vous pouvez déplacer les pièces seulement d'une certaine manière. Le jeu se termine quand une pièce atteint le haut de l'écran et vous pouvez supprimer des pièces seulement en remplissant tous les espaces d'une ligne horizontale
-TutoThemeTitle=Thème
-TutoThemeContent=Cliquez ici pour change le thème du jeu
-TutoRotateTitle=Rotation
-TutoRotateContent=Cliquez ici pour faire pivoter le bloc qui arrive, dans le sens des aiguilles d'une montre
-TutoDownTitle=Bas
-TutoDownContent=Cliquez ici pour faire avancer vers le bas le bloc qui arrive
-TutoLeftTitle=Gauche
-TutoLeftContent=Cliquez ici pour déplacer vers la gauche le bloc qui arrive
-TutoRightTitle=Droite
-TutoRightContent=Cliquez ici pour déplacer vers la droite le bloc qui arrive
-
-[pt]
-TutoPrev=Anterior
-TutoNext=Próximo
-TutoEnd=Fim
-TutoExplainTitle=Blockrain
-TutoExplainContent=Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game
-TutoCanvasTitle=Regras
-TutoCanvasContent=The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)
-TutoThemeTitle=Theme
-TutoThemeContent=Clique aqui para mudar o tema do jogo
-TutoRotateTitle=Rotação
-TutoRotateContent=Click here to rotate the incoming blocks clockwise
-TutoDownTitle=Mover para baixo
-TutoDownContent=Click here to move the incoming blocks in downward direction
-TutoLeftTitle=Mover para a esquerda
-TutoLeftContent=Click here to move the incoming blocks in left direction
-TutoRightTitle=Mover para a direita
-TutoRightContent=Click here to move the incoming blocks in right direction
diff --git a/activities/Blockrain.activity/locales/en.json b/activities/Blockrain.activity/locales/en.json
new file mode 100644
index 000000000..c6874b100
--- /dev/null
+++ b/activities/Blockrain.activity/locales/en.json
@@ -0,0 +1,19 @@
+{
+    "TutoPrev": "Prev",
+    "TutoNext": "Next",
+    "TutoEnd": "End",
+    "TutoExplainTitle": "Blockrain",
+    "TutoExplainContent": "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game",
+    "TutoCanvasTitle": "Rules",
+    "TutoCanvasContent": "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)",
+    "TutoThemeTitle": "Theme",
+    "TutoThemeContent": "Click here to change the theme of the game",
+    "TutoRotateTitle": "Rotate",
+    "TutoRotateContent": "Click here to rotate the incoming blocks clockwise",
+    "TutoDownTitle": "Move Down",
+    "TutoDownContent": "Click here to move the incoming blocks in downward direction",
+    "TutoLeftTitle": "Move Left",
+    "TutoLeftContent": "Click here to move the incoming blocks in left direction",
+    "TutoRightTitle": "Move Right",
+    "TutoRightContent": "Click here to move the incoming blocks in right direction"
+}
diff --git a/activities/Blockrain.activity/locales/es.json b/activities/Blockrain.activity/locales/es.json
new file mode 100644
index 000000000..6a5d5a229
--- /dev/null
+++ b/activities/Blockrain.activity/locales/es.json
@@ -0,0 +1,19 @@
+{
+    "TutoPrev": "Ant",
+    "TutoNext": "Sig",
+    "TutoEnd": "Fin",
+    "TutoExplainTitle": "Lluvia de bloques",
+    "TutoExplainContent": "Bienvenido a la actividad \"Lluvia de bloques\". En \"Lluvia de bloques\", el alumno jugará a un puzzle en el que tendrá que encajar piezas y que está inspirado en el videojuego clásico Tetris",
+    "TutoCanvasTitle": "Reglas",
+    "TutoCanvasContent": "El objetivo del juego es manipular los bloques que aparezcan con una serie limitada de movimientos que te permitan crear líneas horizontales. Al rellenar espacios vacíos en horizontal, eliminarás la línea asociada. La partida se terminará si tus piezas alcanzan la parte superior de la pantalla",
+    "TutoThemeTitle": "Temática",
+    "TutoThemeContent": "Haz clic aquí para cambiar la temática del juego",
+    "TutoRotateTitle": "Rotar",
+    "TutoRotateContent": "Haz clic aquí para rotar los bloques que aparezcan en sentido horario",
+    "TutoDownTitle": "Mover hacia abajo",
+    "TutoDownContent": "Haz clic aquí para mover los bloques que aparezcan hacia abajo",
+    "TutoLeftTitle": "Mover a la izquierda",
+    "TutoLeftContent": "Haz clic aquí para mover los bloques que aparezcan a la izquierda",
+    "TutoRightTitle": "Mover a la derecha",
+    "TutoRightContent": "Haz clic aquí para mover los bloques que aparezcan a la derecha"
+}
diff --git a/activities/Blockrain.activity/locales/fr.json b/activities/Blockrain.activity/locales/fr.json
new file mode 100644
index 000000000..018708286
--- /dev/null
+++ b/activities/Blockrain.activity/locales/fr.json
@@ -0,0 +1,19 @@
+{
+    "TutoPrev": "Préc",
+    "TutoNext": "Suiv",
+    "TutoEnd": "Fin",
+    "TutoExplainTitle": "Blockrain",
+    "TutoExplainContent": "Bienvenue dans l'activité Blockrain. Blockrain est un puzzle avec des blocs, inspiré du grand classique Tetris",
+    "TutoCanvasTitle": "Règles",
+    "TutoCanvasContent": "L'objectif du jeu est de manipuler les blocs pour créer des lignes horizontales. Vous pouvez déplacer les pièces seulement d'une certaine manière. Le jeu se termine quand une pièce atteint le haut de l'écran et vous pouvez supprimer des pièces seulement en remplissant tous les espaces d'une ligne horizontale",
+    "TutoThemeTitle": "Thème",
+    "TutoThemeContent": "Cliquez ici pour change le thème du jeu",
+    "TutoRotateTitle": "Rotation",
+    "TutoRotateContent": "Cliquez ici pour faire pivoter le bloc qui arrive, dans le sens des aiguilles d'une montre",
+    "TutoDownTitle": "Bas",
+    "TutoDownContent": "Cliquez ici pour faire avancer vers le bas le bloc qui arrive",
+    "TutoLeftTitle": "Gauche",
+    "TutoLeftContent": "Cliquez ici pour déplacer vers la gauche le bloc qui arrive",
+    "TutoRightTitle": "Droite",
+    "TutoRightContent": "Cliquez ici pour déplacer vers la droite le bloc qui arrive"
+}
diff --git a/activities/Blockrain.activity/locales/pt.json b/activities/Blockrain.activity/locales/pt.json
new file mode 100644
index 000000000..ecd3995bc
--- /dev/null
+++ b/activities/Blockrain.activity/locales/pt.json
@@ -0,0 +1,19 @@
+{
+    "TutoPrev": "Anterior",
+    "TutoNext": "Próximo",
+    "TutoEnd": "Fim",
+    "TutoExplainTitle": "Blockrain",
+    "TutoExplainContent": "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game",
+    "TutoCanvasTitle": "Regras",
+    "TutoCanvasContent": "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)",
+    "TutoThemeTitle": "Theme",
+    "TutoThemeContent": "Clique aqui para mudar o tema do jogo",
+    "TutoRotateTitle": "Rotação",
+    "TutoRotateContent": "Click here to rotate the incoming blocks clockwise",
+    "TutoDownTitle": "Mover para baixo",
+    "TutoDownContent": "Click here to move the incoming blocks in downward direction",
+    "TutoLeftTitle": "Mover para a esquerda",
+    "TutoLeftContent": "Click here to move the incoming blocks in left direction",
+    "TutoRightTitle": "Mover para a direita",
+    "TutoRightContent": "Click here to move the incoming blocks in right direction"
+}
diff --git a/activities/Blockrain.activity/po/en.po b/activities/Blockrain.activity/po/en.po
deleted file mode 100644
index dca28a7b7..000000000
--- a/activities/Blockrain.activity/po/en.po
+++ /dev/null
@@ -1,100 +0,0 @@
-#. extracted from ../locale.ini
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: Sun Apr 11 2021 11:06:13 GMT+0200 (heure d’été d’Europe centrale)\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: ini2po 0.0.1\n"
-
-#: TutoPrev
-msgctxt "TutoPrev"
-msgid "Prev"
-msgstr "Prev"
-
-#: TutoNext
-msgctxt "TutoNext"
-msgid "Next"
-msgstr "Next"
-
-#: TutoEnd
-msgctxt "TutoEnd"
-msgid "End"
-msgstr "End"
-
-#: TutoExplainTitle
-msgctxt "TutoExplainTitle"
-msgid "Blockrain"
-msgstr "Blockrain"
-
-#: TutoExplainContent
-msgctxt "TutoExplainContent"
-msgid "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-msgstr "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-
-#: TutoCanvasTitle
-msgctxt "TutoCanvasTitle"
-msgid "Rules"
-msgstr "Rules"
-
-#: TutoCanvasContent
-msgctxt "TutoCanvasContent"
-msgid "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-msgstr "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-
-#: TutoThemeTitle
-msgctxt "TutoThemeTitle"
-msgid "Theme"
-msgstr "Theme"
-
-#: TutoThemeContent
-msgctxt "TutoThemeContent"
-msgid "Click here to change the theme of the game"
-msgstr "Click here to change the theme of the game"
-
-#: TutoRotateTitle
-msgctxt "TutoRotateTitle"
-msgid "Rotate"
-msgstr "Rotate"
-
-#: TutoRotateContent
-msgctxt "TutoRotateContent"
-msgid "Click here to rotate the incoming blocks clockwise"
-msgstr "Click here to rotate the incoming blocks clockwise"
-
-#: TutoDownTitle
-msgctxt "TutoDownTitle"
-msgid "Move Down"
-msgstr "Move Down"
-
-#: TutoDownContent
-msgctxt "TutoDownContent"
-msgid "Click here to move the incoming blocks in downward direction"
-msgstr "Click here to move the incoming blocks in downward direction"
-
-#: TutoLeftTitle
-msgctxt "TutoLeftTitle"
-msgid "Move Left"
-msgstr "Move Left"
-
-#: TutoLeftContent
-msgctxt "TutoLeftContent"
-msgid "Click here to move the incoming blocks in left direction"
-msgstr "Click here to move the incoming blocks in left direction"
-
-#: TutoRightTitle
-msgctxt "TutoRightTitle"
-msgid "Move Right"
-msgstr "Move Right"
-
-#: TutoRightContent
-msgctxt "TutoRightContent"
-msgid "Click here to move the incoming blocks in right direction"
-msgstr "Click here to move the incoming blocks in right direction"
-
diff --git a/activities/Blockrain.activity/po/es.po b/activities/Blockrain.activity/po/es.po
deleted file mode 100644
index 8a8ea8d0c..000000000
--- a/activities/Blockrain.activity/po/es.po
+++ /dev/null
@@ -1,100 +0,0 @@
-#. extracted from ../locale.ini
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: Sun Apr 11 2021 11:06:13 GMT+0200 (heure d’été d’Europe centrale)\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: ini2po 0.0.1\n"
-
-#: TutoPrev
-msgctxt "TutoPrev"
-msgid "Prev"
-msgstr "Ant"
-
-#: TutoNext
-msgctxt "TutoNext"
-msgid "Next"
-msgstr "Sig"
-
-#: TutoEnd
-msgctxt "TutoEnd"
-msgid "End"
-msgstr "Fin"
-
-#: TutoExplainTitle
-msgctxt "TutoExplainTitle"
-msgid "Blockrain"
-msgstr "Lluvia de bloques"
-
-#: TutoExplainContent
-msgctxt "TutoExplainContent"
-msgid "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-msgstr "Bienvenido a la actividad \"Lluvia de bloques\". En \"Lluvia de bloques\", el alumno jugará a un puzzle en el que tendrá que encajar piezas y que está inspirado en el videojuego clásico Tetris"
-
-#: TutoCanvasTitle
-msgctxt "TutoCanvasTitle"
-msgid "Rules"
-msgstr "Reglas"
-
-#: TutoCanvasContent
-msgctxt "TutoCanvasContent"
-msgid "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-msgstr "El objetivo del juego es manipular los bloques que aparezcan con una serie limitada de movimientos que te permitan crear líneas horizontales. Al rellenar espacios vacíos en horizontal, eliminarás la línea asociada. La partida se terminará si tus piezas alcanzan la parte superior de la pantalla"
-
-#: TutoThemeTitle
-msgctxt "TutoThemeTitle"
-msgid "Theme"
-msgstr "Temática"
-
-#: TutoThemeContent
-msgctxt "TutoThemeContent"
-msgid "Click here to change the theme of the game"
-msgstr "Haz clic aquí para cambiar la temática del juego"
-
-#: TutoRotateTitle
-msgctxt "TutoRotateTitle"
-msgid "Rotate"
-msgstr "Rotar"
-
-#: TutoRotateContent
-msgctxt "TutoRotateContent"
-msgid "Click here to rotate the incoming blocks clockwise"
-msgstr "Haz clic aquí para rotar los bloques que aparezcan en sentido horario"
-
-#: TutoDownTitle
-msgctxt "TutoDownTitle"
-msgid "Move Down"
-msgstr "Mover hacia abajo"
-
-#: TutoDownContent
-msgctxt "TutoDownContent"
-msgid "Click here to move the incoming blocks in downward direction"
-msgstr "Haz clic aquí para mover los bloques que aparezcan hacia abajo"
-
-#: TutoLeftTitle
-msgctxt "TutoLeftTitle"
-msgid "Move Left"
-msgstr "Mover a la izquierda"
-
-#: TutoLeftContent
-msgctxt "TutoLeftContent"
-msgid "Click here to move the incoming blocks in left direction"
-msgstr "Haz clic aquí para mover los bloques que aparezcan a la izquierda"
-
-#: TutoRightTitle
-msgctxt "TutoRightTitle"
-msgid "Move Right"
-msgstr "Mover a la derecha"
-
-#: TutoRightContent
-msgctxt "TutoRightContent"
-msgid "Click here to move the incoming blocks in right direction"
-msgstr "Haz clic aquí para mover los bloques que aparezcan a la derecha"
-
diff --git a/activities/Blockrain.activity/po/fr.po b/activities/Blockrain.activity/po/fr.po
deleted file mode 100644
index 9630ba65b..000000000
--- a/activities/Blockrain.activity/po/fr.po
+++ /dev/null
@@ -1,100 +0,0 @@
-#. extracted from ../locale.ini
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: Sun Apr 11 2021 11:06:13 GMT+0200 (heure d’été d’Europe centrale)\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: ini2po 0.0.1\n"
-
-#: TutoPrev
-msgctxt "TutoPrev"
-msgid "Prev"
-msgstr "Préc"
-
-#: TutoNext
-msgctxt "TutoNext"
-msgid "Next"
-msgstr "Suiv"
-
-#: TutoEnd
-msgctxt "TutoEnd"
-msgid "End"
-msgstr "Fin"
-
-#: TutoExplainTitle
-msgctxt "TutoExplainTitle"
-msgid "Blockrain"
-msgstr "Blockrain"
-
-#: TutoExplainContent
-msgctxt "TutoExplainContent"
-msgid "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-msgstr "Bienvenue dans l'activité Blockrain. Blockrain est un puzzle avec des blocs, inspiré du grand classique Tetris"
-
-#: TutoCanvasTitle
-msgctxt "TutoCanvasTitle"
-msgid "Rules"
-msgstr "Règles"
-
-#: TutoCanvasContent
-msgctxt "TutoCanvasContent"
-msgid "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-msgstr "L'objectif du jeu est de manipuler les blocs pour créer des lignes horizontales. Vous pouvez déplacer les pièces seulement d'une certaine manière. Le jeu se termine quand une pièce atteint le haut de l'écran et vous pouvez supprimer des pièces seulement en remplissant tous les espaces d'une ligne horizontale"
-
-#: TutoThemeTitle
-msgctxt "TutoThemeTitle"
-msgid "Theme"
-msgstr "Thème"
-
-#: TutoThemeContent
-msgctxt "TutoThemeContent"
-msgid "Click here to change the theme of the game"
-msgstr "Cliquez ici pour change le thème du jeu"
-
-#: TutoRotateTitle
-msgctxt "TutoRotateTitle"
-msgid "Rotate"
-msgstr "Rotation"
-
-#: TutoRotateContent
-msgctxt "TutoRotateContent"
-msgid "Click here to rotate the incoming blocks clockwise"
-msgstr "Cliquez ici pour faire pivoter le bloc qui arrive, dans le sens des aiguilles d'une montre"
-
-#: TutoDownTitle
-msgctxt "TutoDownTitle"
-msgid "Move Down"
-msgstr "Bas"
-
-#: TutoDownContent
-msgctxt "TutoDownContent"
-msgid "Click here to move the incoming blocks in downward direction"
-msgstr "Cliquez ici pour faire avancer vers le bas le bloc qui arrive"
-
-#: TutoLeftTitle
-msgctxt "TutoLeftTitle"
-msgid "Move Left"
-msgstr "Gauche"
-
-#: TutoLeftContent
-msgctxt "TutoLeftContent"
-msgid "Click here to move the incoming blocks in left direction"
-msgstr "Cliquez ici pour déplacer vers la gauche le bloc qui arrive"
-
-#: TutoRightTitle
-msgctxt "TutoRightTitle"
-msgid "Move Right"
-msgstr "Droite"
-
-#: TutoRightContent
-msgctxt "TutoRightContent"
-msgid "Click here to move the incoming blocks in right direction"
-msgstr "Cliquez ici pour déplacer vers la droite le bloc qui arrive"
-
diff --git a/activities/Blockrain.activity/po/pt.po b/activities/Blockrain.activity/po/pt.po
deleted file mode 100644
index e3ec048d7..000000000
--- a/activities/Blockrain.activity/po/pt.po
+++ /dev/null
@@ -1,100 +0,0 @@
-#. extracted from ../locale.ini
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: Sun Apr 11 2021 11:06:13 GMT+0200 (heure d’été d’Europe centrale)\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: ini2po 0.0.1\n"
-
-#: TutoPrev
-msgctxt "TutoPrev"
-msgid "Prev"
-msgstr "Anterior"
-
-#: TutoNext
-msgctxt "TutoNext"
-msgid "Next"
-msgstr "Próximo"
-
-#: TutoEnd
-msgctxt "TutoEnd"
-msgid "End"
-msgstr "Fim"
-
-#: TutoExplainTitle
-msgctxt "TutoExplainTitle"
-msgid "Blockrain"
-msgstr "Blockrain"
-
-#: TutoExplainContent
-msgctxt "TutoExplainContent"
-msgid "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-msgstr "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-
-#: TutoCanvasTitle
-msgctxt "TutoCanvasTitle"
-msgid "Rules"
-msgstr "Regras"
-
-#: TutoCanvasContent
-msgctxt "TutoCanvasContent"
-msgid "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-msgstr "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-
-#: TutoThemeTitle
-msgctxt "TutoThemeTitle"
-msgid "Theme"
-msgstr "Theme"
-
-#: TutoThemeContent
-msgctxt "TutoThemeContent"
-msgid "Click here to change the theme of the game"
-msgstr "Clique aqui para mudar o tema do jogo"
-
-#: TutoRotateTitle
-msgctxt "TutoRotateTitle"
-msgid "Rotate"
-msgstr "Rotação"
-
-#: TutoRotateContent
-msgctxt "TutoRotateContent"
-msgid "Click here to rotate the incoming blocks clockwise"
-msgstr "Click here to rotate the incoming blocks clockwise"
-
-#: TutoDownTitle
-msgctxt "TutoDownTitle"
-msgid "Move Down"
-msgstr "Mover para baixo"
-
-#: TutoDownContent
-msgctxt "TutoDownContent"
-msgid "Click here to move the incoming blocks in downward direction"
-msgstr "Click here to move the incoming blocks in downward direction"
-
-#: TutoLeftTitle
-msgctxt "TutoLeftTitle"
-msgid "Move Left"
-msgstr "Mover para a esquerda"
-
-#: TutoLeftContent
-msgctxt "TutoLeftContent"
-msgid "Click here to move the incoming blocks in left direction"
-msgstr "Click here to move the incoming blocks in left direction"
-
-#: TutoRightTitle
-msgctxt "TutoRightTitle"
-msgid "Move Right"
-msgstr "Mover para a direita"
-
-#: TutoRightContent
-msgctxt "TutoRightContent"
-msgid "Click here to move the incoming blocks in right direction"
-msgstr "Click here to move the incoming blocks in right direction"
-
diff --git a/activities/Blockrain.activity/po/template.pot b/activities/Blockrain.activity/po/template.pot
deleted file mode 100644
index 73ec3f9bd..000000000
--- a/activities/Blockrain.activity/po/template.pot
+++ /dev/null
@@ -1,100 +0,0 @@
-#. extracted from ../locale.ini
-#, fuzzy
-msgid ""
-msgstr ""
-"Project-Id-Version: PACKAGE VERSION\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: Sat May 08 2021 21:57:27 GMT+0200 (heure d’été d’Europe centrale)\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: LANGUAGE <LL@li.org>\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"X-Generator: ini2po 0.0.1\n"
-
-#: TutoPrev
-msgctxt "TutoPrev"
-msgid "Prev"
-msgstr "Prev"
-
-#: TutoNext
-msgctxt "TutoNext"
-msgid "Next"
-msgstr "Next"
-
-#: TutoEnd
-msgctxt "TutoEnd"
-msgid "End"
-msgstr "End"
-
-#: TutoExplainTitle
-msgctxt "TutoExplainTitle"
-msgid "Blockrain"
-msgstr "Blockrain"
-
-#: TutoExplainContent
-msgctxt "TutoExplainContent"
-msgid "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-msgstr "Welcome into the Blockrain activity. Blockrain is a tile-matching puzzle video game inspired by the classic Tetris game"
-
-#: TutoCanvasTitle
-msgctxt "TutoCanvasTitle"
-msgid "Rules"
-msgstr "Rules"
-
-#: TutoCanvasContent
-msgctxt "TutoCanvasContent"
-msgid "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-msgstr "The objective of the game is to manipulate blocks to create horizontal lines. You can only move the pieces in specific ways, your game is over if your pieces reach the top of the screen, and you can only remove pieces from the screen by filling all the blank space in a line (horizontally)"
-
-#: TutoThemeTitle
-msgctxt "TutoThemeTitle"
-msgid "Theme"
-msgstr "Theme"
-
-#: TutoThemeContent
-msgctxt "TutoThemeContent"
-msgid "Click here to change the theme of the game"
-msgstr "Click here to change the theme of the game"
-
-#: TutoRotateTitle
-msgctxt "TutoRotateTitle"
-msgid "Rotate"
-msgstr "Rotate"
-
-#: TutoRotateContent
-msgctxt "TutoRotateContent"
-msgid "Click here to rotate the incoming blocks clockwise"
-msgstr "Click here to rotate the incoming blocks clockwise"
-
-#: TutoDownTitle
-msgctxt "TutoDownTitle"
-msgid "Move Down"
-msgstr "Move Down"
-
-#: TutoDownContent
-msgctxt "TutoDownContent"
-msgid "Click here to move the incoming blocks in downward direction"
-msgstr "Click here to move the incoming blocks in downward direction"
-
-#: TutoLeftTitle
-msgctxt "TutoLeftTitle"
-msgid "Move Left"
-msgstr "Move Left"
-
-#: TutoLeftContent
-msgctxt "TutoLeftContent"
-msgid "Click here to move the incoming blocks in left direction"
-msgstr "Click here to move the incoming blocks in left direction"
-
-#: TutoRightTitle
-msgctxt "TutoRightTitle"
-msgid "Move Right"
-msgstr "Move Right"
-
-#: TutoRightContent
-msgctxt "TutoRightContent"
-msgid "Click here to move the incoming blocks in right direction"
-msgstr "Click here to move the incoming blocks in right direction"
-