- autopep8
- removed unneeded file.
- removed print().
- removed empty file.
- on_exception test.
- removed tests/client.py. Only one TestCase.
- removed unneeded code.
- autopep8
- added TODO, and make URL changeable in subclass.
- log exceptions in server callbacks.
- less logging in client.
- Provide class HTTPError.
- no ssh validation up to now.
- docs.
- version in __init__.py. Defined once, not twice.