Release 1.9.0

• General changes/additions
  • several improvements to the error messages when transforming a tree
    back to text fails. They now make it clearer what part of the tree
    was problematic, and what the tree should have looked like.
  • Fixed the pkg-config file, which should now be usable
  • Fix handling of backslash-escaping in strings and regular expressions
    in the lens language. We used to handle constructs like "\" and
    /\\/ incorrectly. (Issue #495)
  • do not unescape the default value of a del on create; otherwise we are
    double unescaping these strings (Issue #507)
  • remove tempfile when saving files because destination is not writable
    (Issue #479)
  • span information is now updated on save (Issue #467)
  • fix lots of warnings generated by gcc 7.1
  • Various changes to reduce bashisms in tests and make them run on
    FreeBSD (Romain Tartière)
  • Fix building on Solaris (Shawn Ferry)
• API changes
  • add function aug_ns_attr to allow iterating through a nodeset
    quickly. See examples/dump.c for an example of how to use them
    instead of aug_get, aug_label etc. and for a way to measure
    performance gains.
• Lens changes/additions
  • Ceph: new lens for /etc/ceph/ceph.conf
  • Cgconfig: accept fperm & dperm in admin & task (Pino Toscano)
  • Dovecot: also load files from /usr/local/etc (Roy Hubbard)
  • Exports: relax the rules for the path at the beginning of a line so
    that double-quoted paths are legal, too
  • Getcap: new lens to parse generic termcap-style capability databases
    (Matt Dainty)
  • Grub: accept toplevel 'boot' entry (Pino Toscano)
  • Httpd: handle empty comments with a continuation line (Issue #423);
    handle '>""' in a directive properly (Issue #429); make space between
    quoted arguments optional (Issue #435); accept quoted strings as part
    of bare arguments (Issue #470)
  • Nginx: load files from sites-available directory (Omer Katz) (Issue #471)
  • Nslcd: new lens for nss-pam-ldapd config (Jose Plana)
  • Oz: New lense for /etc/oz/oz.cnf
  • postfix lenses: also load files from /usr/local/etc (Roy Hubbard)
  • Properties: accept DOS line endings (Issue #468)
  • Rtadvd: new lens to parse the rtadvd configuration file (Matt Dainty)
  • Rsyslog: load files from /etc/rsyslog.d (Doug Wilson) (Issue #475);
    allow spaces before the # starting a comment; allow comments inside
    config statements like 'module'
  • Shellvars: load FreeBSD's /etc/rc.conf.d (Roy Hubbard)
  • Ssh: accept '=' to separate keyword from arguments
  • Sshd: split HostKeyAlgorithms into list of values; recognize quoted
    group names with spaces in them (Issue #477)
  • Sudoers: recognize "match_group_by_gid" (Luigi Toscano) (Issue #482)
  • Syslog: allow spaces before the # starting a comment
  • Termcap: new lens to parse termcap capability databases (Matt Dainty)
  • Vsftpd: accept seccomp_sandbox (Denys Stroebel)
  • Xymon: accept 'group-sorted' directive (Issue #462)