Use web sockets to check for a closed session
Removed obsolete tasks
Deleted another obsolete method
Merge remote-tracking branch 'origin/master' into custom-theme
Removed call to missing task
Feedback reset is now handled by Web Sockets
Removed debug output
Use average feedback calculation from server
Hide statistics until question has been answered
Fixed disappearing question counter, fixed statistics button
Merge remote-tracking branch 'origin/master' into custom-theme
Added theme1.scss/added color mixins/updated csss
Added generated css files.