CI fails

[ChristianSch]

Somehow the ci does not work anymore and fails because of mongoose.

Locally testing runs though:

  REST API:
    Create User: POST /users
Mongoose connected to database
      ✓ should not create a user (55ms)
      ✓ should not create a user
      ✓ should not create a user
      ✓ should create a user (892ms)
      ✓ should have returned an _id
      ✓ should have an existing user with this email
    POST /users/:email/idformail
      ✓ should return id (772ms)
    POST /users/:id/authenticate
      ✓ should not find user (769ms)
      ✓ should return BadRequest
      ✓ should return BadRequest
      ✓ should return token (807ms)
    GET /users/:id
      ✓ should return unauthorized warning
      ✓ should get the user profile
    POST /users/:id/drops
      ✓ should return unauthorized warning
      ✓ should initialize drop
    POST /users/:id/drops(:id)
      ✓ should return unauthorized warning
      ✓ should reject request without file
      ✓ should upload file to drop (839ms)
      ✓ should reject already uploaded drop id
    GET /users/:id/drops
      ✓ should return list of drops
    GET /users/:id/drops/:id
      ✓ should return unauthorized warning
      ✓ should return drop
    DELETE /users/:id/drops/:id
      ✓ should return unauthorized warning
deleting a761c53109375571fa2d88004dd860ce.js
      ✓ should delete drop (137ms)
      ✓ should not find deleted drop
    DELETE /users/:id
      ✓ should not delete user
      ✓ should delete user

  jshint
    ✓ should pass for working directory (676ms)

  File saving plugins:
    Filesystem plugin
      ✓ should save a file
      ✓ should remove the just saved file
    Amazon Web Services - S3
      ✓ should save a file (118ms)
deleting index.js
      ✓ should remove the just saved file (80ms)


  32 passing (5s)