modify css
temporaily take away md5
Merge branch 'develop' into register
join successful delete leave
Modify Encode
Merge branch 'register' into develop
Sorting files into different folders
Merge branch 'develop' into chatroom

Conflicts:
	extra/css/indexback.css
Correct the new path to make everything works
modify path
Merge branch 'chatroom' into develop
Adding link to direct to memberAdmin,logout
adding and designing div in about_us
design and add footer