Add first tests for the user route - #8

We're stubbing out all of Passport, and simulating login/logout so that
we don't need to hit the Facebook auth endpoints every time the
tests are run. It would probably be a good idea to test the auth helper
directly at some point with more focused stubs.
Merge pull request #1 from asm-products/user-routes-test#8

Add first tests for the user route - #8