Merge branch 'hotfix/7.2.1' into develop

* hotfix/7.2.1:
  * Fixed readme
Merge branch 'hotfix/7.2.2' into develop

* hotfix/7.2.2:
  Updated gems
* Rails 4.1.4
* Updated readme
* Updated gems
Merge branch 'release/7.3.0'

* release/7.3.0:
  * Rails 4.1.4 * Updated readme * Updated gems