add common functions
Merge branch 'master' of https://github.com/Raysmond/FDUGroup
Merge pull request #93 from RenchuSong/master

转菊花和UI improve
group picture
remove new users module
change layout to two columns
ui optimization in user home page
user layout update
user panel module
comment
Merge pull request #94 from zyz282994112/master

comment
bootstrap update
panel heading
content panel wrapper
site help
group nav
code review, optimization
help change