Adds results cache, aggregate scores, and top links index
Adds top_links cache, bonfire cache command, top_links tweet hook
Adds dates module and incorporates timezone branch
Adds cleanup functionality to CLI
Style fixes
Miscellaneous cleanup and bugfixing
Bugfix in process.py
Adds default dates to datetimepicker widget
Adds image height and width to content extractor.
Merge pull request #38 from NUKnightLab/la-cache

Results cache, top links cache (+ tweeting/rss), timezones, cleanup. Addresses #23 #25 #26 #35