Merge branch 'hotfix/0.11.3'

* hotfix/0.11.3:
  * Fixed changelog * Updated gems
Merge branch 'release/0.12.0'

* release/0.12.0:
  Updated change log and version
  Fixes #20
  improved javascript files
  fixed routes
  Removed 18n.locale from application.js Updated error messages Updated gems
* Updated gems
Merge branch 'hotfix/0.12.1' into develop

* hotfix/0.12.1:
  * Updated gems