Removed use of deleted field url.
VS3.1 fixed housing_location in_jail status
Fixed uninitialized variable defects #235
Fixed HousingHistory.housing_date_discovered to set to yesterday, not today, #236
VS 3.1 - added dump_db command to fab file and did a little refactoring
Merge pull request #237 from nwinklareth/master

Changes to support VS3.1 and some error fixes