Improvements suggestion for DataChannels

I've re-take my work with the DataChannels and I've got some
interrelated improvement suggestions to simplify it's API:

* list of current DataChannels on a PeerConnection object.
* attribute to identify if a DataChannel object was created by us or
by the remote PeerConnection object
* dispatch datachannel event also for locally created DataChannel objects

I've added a shim with the implementation of this three features. How
could I move forward its discussion?

-- 
"Si quieres viajar alrededor del mundo y ser invitado a hablar en un
monton de sitios diferentes, simplemente escribe un sistema operativo
Unix."
– Linus Tordvals, creador del sistema operativo Linux