Adds voting functionality

* Remane voting model to votation model
* Remane migration of voting to votation
* Updates db/schema
Adds voting functionality

* Adds personal files to .gitignore
* Adds css rules for admin area
* Change relation for badge engine badge initializer
* Change name resource in config/routes
Adds voting functionality

* Renamed voting controller to votations controller
* Renamed voting views to votation views
* Fix link to helpers in admin views