Initial pagination system and minor changes

- Pagination works properly exept for JSON and XML, those should not be affected by pagination limits.
- Added better helpers for controls sentences.
Celeanup and some UI changes

- New draft for event form
- Better UI xperience
- Abusing helpers :)
Testing calendar view
Updated locales
Better style for comments partial
Merge branch 'develop' of github.com:guluc3m/gul-gultalks into develop
Use enums for event level