Does not allow user to specify database connection

As far as I can tell, Fixturize does not allow its user to specify which DB config to use. This would be very helpful on my current project.

I should have a fix soon.

The issue names Fixturize and database configuration but provides no files, tests, or entry points. Start by locating Fixturize's connection and configuration code, then determine how the selected database configuration is currently resolved. Done means users can choose which DB config Fixturize uses and the behavior is covered by an appropriate test.

Written by the indexing model from the issue text.