Add total runtime stat and raven to map tiles generation script.
Remove sql socket support from loadtest scripts.
Use API keys for submit calls during loadtesting.
Optimize data loading part of loadtesting a bit.
Remove unused MYSQL_HOST from loadtest/ichnaea.ini.
Make the loadtesting data set less random, and restrict it to the US.
Add alembic migrations for lat/lon int -> double, cc #267
Change models to use double for lat/lon, cc #267
First pass converting int lat/lon literals to double, cc #267
First cut removing (to|from)_degrees, cc #267
Fix lat/lon bugs in ichnaea/backfill/tests.py cc #267
Change a bunch of ints to floats for lats/lons, cc #267
Attempt to fix some int-float lat/lon issues cc #267
Fix more tests broken by float lat/lon cc #267
Switch Double columns to not use Decimal, cc #267
Switch int division to float division cc #267
Fix more float lat/lon bugs cc #267
Fix more float lat/lon bugs cc #267
Adapt mapstat code to lat/lon floats, close #267