presave
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git
presave - check start time, end time, radius
clear print_r
merge conflict
merge conflict
merge conflict
merge conflict
merge conflict
merge conflict
failed to create activity
join activity
Merge branch 'master' of https://github.com/OT-SIMS-2013/server.git