Misc UI fixes
Merge branch 'stats'

Adding a dynamic view to the stats.
added groups (aka departments), cleaned up templates, fixed static links. cleaned up nav bar. missing headers, to be discussed further (what to display for consistency, etc.) cleaned up urls a little, view names a little, and added activity_row includes.
lunch updates to ui - more cleanup.
fix error in models.py
Adding namespace to the feed cache. Fixing the right padding on the stats view.