IP-Identity Tests
Added IP Identity Deproxy tests
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.
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.
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
Merge branch 'master' of https://github.com/rackerlabs/repose