Update jQuery: 1.8.3 -> 1.11.1

KNOWN BUG: .slideUp() not working.
use new api for sending dm
Merge pull request #55 from shadowglen/master

use new api for sending dm
Fix sidebar .slideUP() not working

论复制粘贴时候防手抖的重要性...
Merge branch 'jquery2' into devtest
fix issues in jQuery 2.1.1
Merge pull request #56 from shadowglen/master

fix issues in jQuery 2.1.1
show/hide sent tip via CSS3
Merge branch 'devtest' of https://github.com/AstroProfundis/embrr
Merge pull request #57 from shadowglen/master

show/hide sent tip via CSS3
1. sidebar tip out of bound issue; 2. first click on [+] doesn't expand the details
other minor issues of updating jQuery
Merge pull request #58 from shadowglen/master

More fix of sidebar jQuery
Fix issue clicking on Chinese tags in IE
Merge branch 'devtest' of https://github.com/AstroProfundis/embrr
remove dead code
Fix issues on user list page