updated pjsip stack
There is still a bug on incoming calls when buiding for android
diff --git a/jni/pjproject-android/pjmedia/src/pjmedia-codec/h264_packetizer.c b/jni/pjproject-android/pjmedia/src/pjmedia-codec/h264_packetizer.c
index 9b22334..0e71604 100644
--- a/jni/pjproject-android/pjmedia/src/pjmedia-codec/h264_packetizer.c
+++ b/jni/pjproject-android/pjmedia/src/pjmedia-codec/h264_packetizer.c
@@ -1,4 +1,4 @@
-/* $Id: h264_packetizer.c 4537 2013-06-19 06:47:43Z riza $ */
+/* $Id$ */
 /* 
  * Copyright (C) 2011 Teluu Inc. (http://www.teluu.com)
  *