Make admin userlist roles dropdowns, add methods for changing roles to
controller and factory
Delete useless comments and debug messages, refactor /user/change to /user/role/change(for the time being)
Prettify code, change level to role
Remove debug messages
Remove empty success()
Refactor Administrator(nd) to Administrator and Administrator to Moderator
Merge pull request #13 from onurv12/master

Make admin userlist roles dropdowns, add methods for changing roles to controller and factory