Merge branch 'hotfix/0.5.1' into develop

* hotfix/0.5.1:
  * Updated Rails dependency to 3.2.17
* Support for Rails 4.1.0.rc1
* Support for Rails 4.1.0.rc1
* Support for Ruby 2.1.1
* Added style for standard Rails form errors
* Fixed Sass precision
Rails 4.1.0rc2
improved integration test
Merge branch 'release/0.6.0'

* release/0.6.0:
  improved integration test
  Rails 4.1.0rc2
  * Fixed Sass precision
  * Support for Rails 4.1.0.rc1 * Support for Ruby 2.1.1 * Added style for standard Rails form errors
  * Support for Rails 4.1.0.rc1
[ci skip]
another fix in README
[ci skip]
updated change log
[ci skip]
Merge branch 'hotfix/0.6.1'

* hotfix/0.6.1:
  updated change log [ci skip]
  another fix in README [ci skip]
  [ci skip]