Async-upnp-client

- Prevent error when not subscribed
- upnp-client is more friendly towards user/missing arguments
- Debug log spelling fix (scop)
- Add some more IGD methods (scop)
- Add some more IGD WANIPConnection methods (scop)
- Remove new_ prefix from NatRsipStatusInfo fields, fix rsip_available type (scop)
- Add DLNA RC picture controls + refactoring (scop)
- Typing improvements (scop)
- Ignore whitespace around state variable names in XML (scop)
- Add basic printer support (scop)

- Upgrade python-didl-lite to 1.1.0

- Install the command line tool via setuptools' console_scripts entrypoint (mineo)
- Show available services/actions when unknown service/action is called
- Add configurable timeout to aiohttp requesters
- Add IGD device + refactoring common code to async_upnp_client.profile
- Minor fixes to CLI, logging, and state_var namespaces

- Add TravisCI build
- Add AiohttpNotifyServer
- More robustness in DmrDevice.media_*
- Report service with device UDN

- Fix examples/get_volume.py
- Fix README.rst
- Add aiohttp utility classes

- Add upnp-client, move async_upnp_client.async_upnp_client to async_upnp_client.__init__
- Hide voluptuous errors, raise UpnpValueError
- Move UPnP eventing to UpnpEventHandler
- Do traffic logging in UpnpRequester
- Add DLNA DMR implementation/abstraction