Merge branch 'hotfix/0.19.6'

* hotfix/0.19.6:
  * Fixed mongoid-slug dependency * Removed Rails < 4.1 secret token  configuration * Improved secrets.yml
* Fixed sass dependency
* Improved reference template
Merge branch 'hotfix/0.19.7' into develop

* hotfix/0.19.7:
  * Fixed sass dependency * Improved reference template