Improve some more spinners.
Review Request #7271 — Created April 30, 2015 and submitted
This change converts the spinner used in the side-by-side diff views to the new
font-awesome based one, and fixes the font size for the one in the review
dialog (which is shown while loading comments).
Looked at both places and saw good-looking spinners.
Tool: Pyflakes Ignored Files: reviewboard/static/rb/css/pages/reviews.less reviewboard/static/rb/js/pages/views/diffViewerPageView.js Tool: PEP8 Style Checker Ignored Files: reviewboard/static/rb/css/pages/reviews.less reviewboard/static/rb/js/pages/views/diffViewerPageView.js