Update to jQuery 1.11
Review Request #6700 — Created Dec. 16, 2014 and submitted
This does the small amount needed to migrate Review Board to jQuery 1.11.
- Ran js-tests.
- Grepped through the javascript code and audited against the list of
backwards-incompatible changes in jQuery 1.9 (1.10 and 1.11 are pretty
trivial in terms of incompatible changes).