Merge branch 'hotfix/2.11.1' into develop

* hotfix/2.11.1:
  * Bumped up version
Merge branch 'hotfix/2.11.2' into develop

* hotfix/2.11.2:
  * Tested against Rails 4.0.9 and 4.1.5 * Bumped up version
Merge branch 'hotfix/2.11.3' into develop

* hotfix/2.11.3:
  * Fixed rake task
Merge branch 'hotfix/2.11.4' into develop

* hotfix/2.11.4:
  * Updated badges
* Automatically requires `less-rails` and `therubyracer`
* Updated Rails dependency
* Using Appraisal to run tests
* Font Awesome 4.2.0
updated license and read me
[ci skip]
* Removed open-ended dependencies
* Tested against Rails 4.0.10 and 4.1.6
fixed readme
fixed minitest dependency
fixed gemspec
Merge branch 'develop' into release/2.12.0

* develop:
  fixed gemspec
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