Use new except syntax  + remove the unicode literals
Move all fixtures in seperate folder
Make code Python 3.x compatible
Fix import statements
Handle rename of httplib to http.client for Python 3.x
Make urllib.urlencode available in Python 3.x
Compare UTF-8 string to byte string
Alternate implementation to compare XML

- Use xmltodict to compare XML as python dicts
- Only compare XML content, not its order
- Use dicts and urlparse to compare test results
Split requirements.txt for tests
Extend http_mock to accept multiple files as results