Refactor message
Fixed small bugs
[group discuss] fixed bugs about reply
use pdf2htmlEX instead of pdf2swf
show loading gif when converting documents
[pdf2html] redesigned doc/pdf view , rm 'flexpaper' files
use seahub to serve office convert requests
move office convert js to office_convert_js.html
update search/office-convert settings related
improve office preview page loading
[sysadmin] Fix a bug in showing share space usage
Redesign user profile
Change user_profile to  user_msg_list
Change all msg table
Added new avatar size
load seahub_extra_settings.py if found
add office preview size limit

default limit is 2MB
fixed the view_pdf/view_document template
List share out/in repos in user_share_list
Sending signal when sharing repo successful