updated pjsip stack
There is still a bug on incoming calls when buiding for android
diff --git a/jni/pjproject-android/pjlib/src/pj/timer.c b/jni/pjproject-android/pjlib/src/pj/timer.c
index 04e318e..931a57f 100644
--- a/jni/pjproject-android/pjlib/src/pj/timer.c
+++ b/jni/pjproject-android/pjlib/src/pj/timer.c
@@ -1,4 +1,4 @@
-/* $Id: timer.c 4537 2013-06-19 06:47:43Z riza $ */
+/* $Id$ */
 /* 
  * The PJLIB's timer heap is based (or more correctly, copied and modied)
  * from ACE library by Douglas C. Schmidt. ACE is an excellent OO framework
@@ -466,6 +466,11 @@
     return entry;
 }
 
+PJ_DEF(pj_bool_t) pj_timer_entry_running( pj_timer_entry *entry )
+{
+    return (entry->_timer_id >= 1);
+}
+
 #if PJ_TIMER_DEBUG
 static pj_status_t schedule_w_grp_lock_dbg(pj_timer_heap_t *ht,
                                            pj_timer_entry *entry,