add IsPreShared filed for Group data
add group changed realtime supporting
add some group data
Fix presentation link in mail #1164
update groupchange data
Merge branch 'master' into sharing-pending
Merge branch 'master' into sharing-pending

Conflicts:
	ws_reply_data.go
Merge branch 'master' into sharing-pending

Conflicts:
	data.go
fix param name for clarity
New layout of Left group Sidebar
New layout for group selector
remove validated for CreateEntry
Remove more Validated return values
Add access code related admin service
Merge branch 'close-beta-signup'
Merge pull request #8 from theplant/sharing-pending

Sharing pending
add InviteMe API
Merge pull request #10 from theplant/anyone-can-join-organization

add InviteMe API
Add Signup service
add inner message type