[Jingle] updated specs

[Peter Saint-Andre]

I've published new versions of XEPs 166, 167, and 176:

http://www.xmpp.org/extensions/xep-0166.html

http://www.xmpp.org/extensions/xep-0167.html

http://www.xmpp.org/extensions/xep-0176.html

With these modifications I've attempted to incorporate our consensus
from the XMPP Summit last week. I can't promise that everything is 100%
accurate, but I'm sure we'll find the remaining errors in the next few
weeks. Don't be shy about reporting them on this list or to me directly.

Next I will update XEP-0234 (Jingle File Transfer), but that might not
happen until next week.

Enjoy!

/psa