Libjingle in webrtc needs updated AUTHORS, COPYING, LICENSE_THIRD_PARTY AND README.

BUG=1935
R=andrew@webrtc.org, fischman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1805005

git-svn-id: http://webrtc.googlecode.com/svn/trunk/talk@4356 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/LICENSE_THIRD_PARTY b/LICENSE_THIRD_PARTY
new file mode 100644
index 0000000..0423fdb
--- /dev/null
+++ b/LICENSE_THIRD_PARTY
@@ -0,0 +1,29 @@
+This source tree contains third party source code which is governed by third
+party licenses. This file contains references to files which are under other
+licenses than the one provided in the COPYING file in the root of the source
+tree.
+
+Files governed by third party licenses:
+
+Governed by license within files (Public domain):
+Exact origin unknown
+base/base64.c
+base/base64.h
+
+Governed by http://www.fourmilab.ch/md5/ (Public domain):
+base/md5.c
+base/md5.h
+
+Governed by http://www.boost.org/LICENSE_1_0.txt (Boost license):
+base/scoped_ptr.h
+
+Governed by license within files (Public domain):
+Originally downloaded from http://svn.ghostscript.com/jbig2dec/tags/release_0_02/sha1.*
+base/sha1.c
+base/sha1.h
+
+Governed by http://sigslot.sourceforge.net/#license (Public domain):
+base/sigslot.h
+
+Governed by http://www.freedesktop.org/wiki/Software/systemd (LGPL 2.1+):
+third_party/libudev/libudev.h
\ No newline at end of file