[IMP]Improvement in event.
[IMP]Improvement in view.
[IMP] Search box
[IMP]added speakers in event_track demo data and display speaker after event title.
[MERGE]Trunk.
[IMP]IMplement alog half.(other part in progress.)
[IMP]Complete algo for timetable.
[IMP]Remove global variable.
[IMP]event-track: implement color code for event and added color in demo data of event_track.
[IMP]complete algo,template and working well timetable.
[IMP]track can't overlapped now, contraint added, change in demo data.
[ADD]comment
[MERGE]Trunk.
[IMP] start date and end date can't be same, track must have secret key.
[IMP]add talks
[IMP]link each track to talk, remove link with room name.
[REM~]
[IMP]user superuserid.
[IMP]improved speaker name, added class text-muted and make it small.
[IMP]added stage_id in demo data of event_track and removed registration & cofee talk from demo data.