libjingle: use _stricmp instead of deprecated stricmp.
libjingle: use _stricmp instead of deprecated stricmp.

BUG=N/A
R=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/25869004

git-svn-id: a556c8bde68cedbc0208a1ffc78b06e9cd07f676@7447 4adac7df-926f-26a2-2b94-8c16560cd09d

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