add events to community version; add events api
Fixed bug in generating upload/update url, and comment out unused code
Added notices more
Hide repo download button
Added FORCE_SERVER_CRYPTO option
Go to user message list when click new message from notices
[api2] Add api for move and copy files
Update group tips
[api2] Fix for api change
Update open office file icon
[api2] Add search
Merge branch 'default-lib'

Conflicts:
	seahub/profile/views.py
[api2] Update avatar api
Merge branch 'events'
Add repo name to repo decryption page
Remove password checking for demo account
Update account delete
[redesign] modified topbar, top nav, use side nav
Fixed default library creation bug
[dir priv share] fixed submit bug