Fix minor coding style
Rearrange imports
Create messages.html for displaying django messages
cpanel: add role
Merge pull request #428 from AndreiRO/master

Added pagination to messages, thanks to @AndreiRO
Merge pull request #427 from cmarius02/master

cpanel: add role ui, thanks @cmarius02
cpanel: manage player shortcut
cpanel: improve Players & Groups interface
Merge and fix add roles.
Allow staff only login
Remove useless import
Merge pull request #429 from badescunicu/staff_only

Staff only login thanks to @badescunicu
Fixed pagination bug