add missing return
less timeout before rejecting request promises
allow connectionMade on client
switch from camelCase to underscores
implement LoopingCall

this was previously implemented as part of twisted
implement NetstringReceiver

this was previously implemented as part of twisted
switch logger
pass loop to client
switch to asyncio
change twisted to trollius in setup.py and docs

This port was split into several commits for clarity. The individual
commits do not necessarily contain a working state.

In python 3.4, asyncio was added to the standard library. It provides
nearly all of the features we used from twisted (the only exceptions
being LoopingCall and NetstringReceiver). It also has a very similar
API.

Asyncio is much more lightweight than twisted.  Trollius is a backport
of asyncio to earlier python versions. It allows us to be compatible
with both python2 and python3. Twisted is only compatible with python2.

There is some more work needed for python3 support. But this is a major
step.
fix quit on client
Fix curses/stupid single field movement

I am not sure why this helps, but it does.