Merge pull request #116 from ModernBB/master

Fix small issues
#107 Display error with statistics
#89 #113 Rewrite groups and permissions
#89 #113 Rewrite lots of pages and fix the bug
#89 Latest updates, rewrite frontend, Bootstrap 3
#117 Makes it easier to add new styles
Fix some other issues
General update
#94 Check "remember me" by default
#96 #130 Restructure the ModernBB core
#96 Fix Backstage menu
#130 We left some files there
#104 Some style improvements for Backstage
#89 Final commit, redesigns the profile
#90 Change topic view with imrpoved structure
Rename style
#90 Style improvements, topic view
Fix installer
Update userlist
#90 Redesign search