Move the Jingle-specific network code into webrtc/libjingle.
Move the Jingle-specific network code into webrtc/libjingle.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/29319004

git-svn-id: a556c8bde68cedbc0208a1ffc78b06e9cd07f676@7977 4adac7df-926f-26a2-2b94-8c16560cd09d

sippet/talk,dcpang/fatline-libjingle,dcpang/fatline-libjingle,sippet/talk,sippet/talk,dcpang/fatline-libjingle,dcpang/fatline-libjingle,sippet/talk,dcpang/fatline-libjingle,sippet/talk