Merge branch 'hotfix/5.0.2'

* hotfix/5.0.2:
  * Load Bootstrap javascripts by default * Updated gems
* Removed Puma Auto Tune (Issue #9)
* Removed unneeded assets
* Improved application layout
* Updated gems
Merge branch 'hotfix/5.0.3' into develop

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