Fix the cache stats page.
Review Request #3554 — Created Nov. 23, 2012 and submitted
Fix the cache stats page. The cache stats page hasn't really worked correctly in a while. This may be due to the Django changes to cache backends. Either way, we're now working properly with cache backends, and format our content in a way that's consistent with the admin UI.
Tested with local file cache, local memory cache, and memcached.