remove filter feature
set up mongodb
importing of Occurrences and UberExceptions
load dashboard data
load project data
load single exception data
make closing of exceptions work
make forget_exceptions work
make sorting by occurrence_count work
make find_new_on work again
remove redis from most of the app
make all run and pass again
create mongodb indexes
make last 30 days graphs faster

a lot of small count queries are faster than a few
larger group queries
small cleanup
moar indexes
fix margins now that filters are gone
don't rerender the graph when paging through occurrences
make tests pass when running with rake test
use explicit api_key -> project mapping

This allows us to:
 - define the order of projects in the config file
 - authenticate the API and the app seperately