fix bug in operation validation
fix test matrix
fix urlparse import
Merge pull request #33 from pipermerriam/piper/fix-request-response-validation-bug

fix bug in operation validation
2.4.0 version bump
Merge branch 'master' of github.com:pipermerriam/flex
remove extra release line
exclude tests directories
dirty commit
broke a lot of stuff
still quite broken
bunch of TODO comments
tests passing
fix flake8