Merge pull request #5 from john5223/master

testing for cloudmanager.setup_db (tox, pytest)
Added Travis-CI build badge
Updated urlparse to leverage six.moves.urllib, changed sha256() helper to use binary read instead of utf-8 encoded chunks.
Pulled the non-test dependencies out of tox
added 'six' dependency to setup.py
Added more test assertions to test_cloudmanager
fixed db error if db already exists in postgres