Tweet stream

added streaming support with tweetstream gem..

to use it just get into rails console and type: RUBYFRIENDS_APP.persist_tweetstream

then check your db or browser and they stream

the old rake task still works too...

Also added a bunch of tests that cover the app pretty well. RSpec cover 91% and cucumber much of the rest. There are tons of changes though so I won't hold it against you if your uncomfortable about them...