Fix some problems with undefined variables in js code.
Review Request #8733 — Created Feb. 10, 2017 and submitted
There were a few places in our JS where we were making use of things which were
guaranteed to be undefined. These were mostly typos and think-os.
Ran js-tests.
Tool: Pyflakes Ignored Files: reviewboard/static/rb/js/diffviewer/views/tests/diffReviewableViewTests.js reviewboard/static/rb/js/ui/views/notificationManager.es6.js reviewboard/static/rb/js/views/textCommentRowSelector.js Tool: PEP8 Style Checker Ignored Files: reviewboard/static/rb/js/diffviewer/views/tests/diffReviewableViewTests.js reviewboard/static/rb/js/ui/views/notificationManager.es6.js reviewboard/static/rb/js/views/textCommentRowSelector.js