First stub for community, no migration yet
Added communities, default 'World'
Added select but no purpose for it yet
Community selection possible during search (not yet added for browse etc)
Removed affix
Caught when given community does not exist & everybody has public as option
Tweaked the searchbox with community selection a bit
Altered Community model implementation, added hierarchial community search
Merge remote-tracking branch 'origin/master' into community
Fixed default value for item communities