Merge pull request #20 from OpenKMIP/maint/set-integration-default-python

Updating tox to specify Python version for integration tests

tox.ini

@@ -16,6 +16,7 @@ commands = flake8 kmip/
 [testenv:integration]
 # Note: This requires local or remote access to a KMIP appliance or service
 deps = {[testenv]deps}
+basepython=python2.7
 commands =
     py.test --strict kmip/tests/integration {posargs}