prepare for ajax polling message count in sidebar
enable configuration change
add migration feature
add group search
group page title
get message count
unread row color in received messages list
sidebar: count unread inbox changed to unresponded
update migration table
fix error variable not defined unresponded in message list
sms signature config, direct sms link from conversation,
template in compose, scheduled count in sidebar
remove back button in conversation view
success embed template in compose window
Merge branch 'development' into sms-template
templates management
code reindent
fix bug template javascript in compose
add migration script for template feature
backup data feature in config page