Updated translation: Amended Russian, cleanup whitespaces
Fixed issue: Deleted another donation widget, fixed roles that cans seen it
Fixed issue: Cleanup User authorization library
Fixed issue: Guests that has permission 'access profiles' can see profiles
Fixed issue: Cleanup Admin Role Controller
Fixed issue: Fixed errors container (now we use Template::_errors)
Fixed issue: Cleanup Abstract OAuth Class controller
Updated feature: Added ability for admins to edit users profiles
Updated feature: Cerber Theme
Merge pull request #398 from sergeyklay/master

User fixes and additions