making pylint happier
correcting more pylint complaints. deleted file module
Dropped unused attribute
charset and user-agent to websocket
changed to properties and bit more standard attribute handling
renamed Source to SourcePlugin, for consistency with OutputPlugin
wss snakeoil cert handling

Still needs to have correct hostname.
Total cert ignoring not working until websocket-client 0.16.0
provide way to disable ssl hostname check for the connection