tab autocomplete, exit/quit to exit

[esaruoho]

@ideoforms as per your ticket https://github.com/ideoforms/AbletonOSC/issues/36

here's two alterations:

1. Exit / Quit will now cleanly exit the run-console.py
2. Tab will attempt to autocomplete what you've written in, and show you the handlers that are currently there.

the list is static generated, not dynamically generated - by just fetching all the add_handlers from all the code.

[esaruoho]

i think there's a way of making it dynamic instead of static.

[esaruoho]

the dynamic method ended up with a bunch of %s content. so i'm just dumping the manual there and seeing how big the list gets.

[esaruoho]

pushing a modification.