HTTP request stuff.

Test helper for full routing stack, from the root all the way to the leaf
resource.
better test helper support, remove debug print
Convert the auth test to use the helper
Merge pull request #42 from rackerlabs/request-testing

Request testing
moving the parameterization of plugins in mimic core to a branch of its own
Merge pull request #43 from rackerlabs/parametrize-plugin-list-for-mimiccore

moving the parametrization of plugins in mimic core to a branch of its ...
tenant id as a uuid4() integer
fix lint errors