Created bitVectorify2.py and sqlalchemy patch.

Unfortuantely biVectorify2, although more readable in code, is significantly less efficient than the old bitVectorify. In addition, SQLAlchemy patch won't work because some of our criterion (filtrs) use relationships on the FacebookUser model. For example, we use the relationships "locations" to search the locations table for zip codes.
Merge branch 'master' of github.com:alpaca/api