Refactor BaseController
Use correct partial names
Fix admins and roles controllers
Fix sortable objects
Make it possible to sort index view columns by items columns
speed up rendering by including as many objects as possible when
selecting item
Add some documentation
Rename item and items to resource and resources.

This is what other gems do. This will also help us make some method
names more consistent
Rename current_object_class to resource_class
Simplify mass-assignment
Fix tags
Add some documentation, fix readme
Update yardopts
Get rid of unneeded helpers