Merge branch 'hotfix/2.11.4'

* hotfix/2.11.4:
  * Updated badges
Merge branch 'release/2.12.0'

* release/2.12.0:
  fixed gemspec
  fixed readme fixed minitest dependency
  * Tested against Rails 4.0.10 and 4.1.6
  * Removed open-ended dependencies
  updated license and read me [ci skip]
  * Font Awesome 4.2.0
  * Automatically requires `less-rails` and `therubyracer` * Updated Rails dependency * Using Appraisal to run tests
* Tested against Ruby 2.1.3
Merge branch 'hotfix/2.12.1' into develop

* hotfix/2.12.1:
  * Tested against Ruby 2.1.3