Modified tutor to take db_name as arg, started test scaffold.
Replay tutor test, fixed bugs in replay tutor, added duck punching httpretty to commands.
Test scaffold
Fixed some bugs in data connector, added test
added replay tutor to this branch because I dicked it up
Merge pull request #28 from tutorgen/data-connector-test

Data connector test.  I pulled this because I need the httpretty patch.