Remove some hacks and quirks from reviewboard javascript.

Review Request #4679 — Created Oct. 3, 2013 and submitted — Latest diff uploaded

Information

Review Board
master

Reviewers

Remove some hacks and quirks from reviewboard javascript.

This change removes a few of our hacks from the Review Board code. There's
still a few in there for IE8 and 9, which I'd like to eliminate, but I haven't
figured out how to do so in a way that won't keep relying on $.browser