Use a trunk version of django debug toolbar
Update python version to 2.7, as the pstats module is required for profiling
Use Django's cache as django_cache.cache so that we don't have a race condition in when debug toolbar patches the variable
Improved caching performance
- Added a CacheBuffer class and cache_buffer object to act as a buffer so that data can be flushed into the cache at the end of a request
- Updated cache objects to use cache_buffer instead of Django's cache directly
- Updated cache-clearing save to only clear cache if the object is not new
Improve cache performance by preloading a bunch of regularly used keys in bulk
Drop Python 2.6 support