XUDD works on asyncio!

WHAT HOW WAS THAT SO EASY
Remove loop "should_stop"
Wrap message ids being sent back in MessageId
Merge branch 'master' into asyncio
Merge branch 'master' into asyncio
"Webreader" demo
Removing the MessageId thing
Adding asyncio to dependencies of asyncio branch
EXCITING NEW FEATURE: ability to wait on asyncio futures
Shut down more cleanly at sigint/sigterm
Support arbitrary asyncio yields

You can now use "yield from" style calls in XUDD... as long as you use
just "yield" :)
Demo of using the ayncio style yield stuff
Adding comments explaining this
Remove py27 from the list of supported pythons in tox.ini
Yield and yield from both work in asyncio calls
New asyncio based IRC bot