Merge branch 'hotfix/5.0.3'

* hotfix/5.0.3:
  * Removed Puma Auto Tune (Issue #9) * Removed unneeded assets * Improved application layout * Updated gems
Merge branch 'release/5.1.0'

* release/5.1.0:
  * Improved homepage * Improved README * Updated gems
Merge branch 'release/6.0.0'

* release/6.0.0:
  Updated change log Bumped version number
  trying to improve readme [ci skip]
  fixed README [ci skip]
  First commit for Rails 4.1.0
* Improved turbolinks spinner
* Updated gems
Merge branch 'hotfix/6.0.1' into develop

* hotfix/6.0.1:
  * Improved turbolinks spinner * Updated gems