added model methods for analyzing user tweets with tests
removed use of deprecated error.message
some housekeeping and removed null constraint on since_id
using model code to get tweets
fixed bug where empty regex matched everything
added initial data for keywords
added django_rq
get rugby tweets when user first authorizes app
showing user's rugby tweets instead of timeline
fixed a problem with analyzing empty tweet lists
added clock job that analyzes everyone's tweets
optimizing for multiple workers
cleaning up