Potential Fix for #18 ( with fixed tests ) and some other junk

Check out these changes. If you decide **not** to go with the bound method approach, just ignore it this rpull request.

1. I fixed the tests that broke because of the Conduit._get_method() change from this commit https://github.com/thebigspoon/django-conduit/commit/62e8883e199e63317493eb324fd2c763655cd88e

2. I wrote a few tests where resources are declared using module-level functions, class-methods and dynamically-rebound class methods

thanks