Backport r13315 from rails-4.1 to trunk.

Use .on() instead of .live().

git-svn-id: http://svn.redmine.org/redmine/trunk@13407 e93f8b46-1217-0410-a6f0-8f06a7374b81
Backport r13313 from rails-4.1 to trunk.

Upgrade to JQuery 1.11.1

git-svn-id: http://svn.redmine.org/redmine/trunk@13408 e93f8b46-1217-0410-a6f0-8f06a7374b81