IP-Identity Tests
Added IP Identity Deproxy tests
Added unit test for null configuration
Add some basic configs, pip-requirements, and empty test script.
Added the fake identity service. Added assertions for the first two of the threee requests.
Merge branch 'master' of https://github.com/rackerlabs/repose
Bump dependency required version.
Fix how FakeIdentityService handles requests for groups.
Added FakeAtomService and assertions for the last request.
Used a wildcard when checking for the filter bundle, in case we already have one with an explicit version string.
B-47712: Added test.
Merge pull request #522 from melissa-kam/master

IP-Identity Deproxy Tests
Merge pull request #523 from dmnjohns/master

Added unit test for null configuration construction
Merge pull request #525 from richard-sartor/b-48277-identity-atom-test

B 48277 identity atom test
B-47712: Added test.
Merge branch 'master' of https://github.com/rackerlabs/repose into checkmate
B-47712: Added warning. Added description to xsd. Set default contract version to "fixed".
Merge pull request #527 from rackerlabs/sethbrayman

B-47712: Passing the service catalog as a header, via the client authN filter.
Merged changes from master with my catalog service tests