refactors UserOnline::setOnline
code formatting
validation rules for UserOnline.user_id
refactors UserOnline::setOnline
Merge branch 'release/2013-09.05' into develop
code formatting
defaults Category.thread_count to `0`
code formatting
fixes missing css max-width for <video> content
fixes [API]: always logout on login attempt
fixes mandatory category select in search form
bumped version string
Merge branch 'release/2013-09.06'