updated pjsip stack
There is still a bug on incoming calls when buiding for android
diff --git a/jni/pjproject-android/pjsip/include/pjsip-ua/sip_regc.h b/jni/pjproject-android/pjsip/include/pjsip-ua/sip_regc.h
index 826d45e..80c7a33 100644
--- a/jni/pjproject-android/pjsip/include/pjsip-ua/sip_regc.h
+++ b/jni/pjproject-android/pjsip/include/pjsip-ua/sip_regc.h
@@ -1,4 +1,4 @@
-/* $Id: sip_regc.h 4173 2012-06-20 10:39:05Z ming $ */
+/* $Id$ */
 /* 
  * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
  * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
@@ -84,6 +84,22 @@
 typedef void pjsip_regc_cb(struct pjsip_regc_cbparam *param);
 
 /**
+ * Structure to hold parameters when calling application's callback
+ * specified in #pjsip_regc_set_reg_tsx_cb().
+ * To update contact address, application can set the field contact_cnt
+ * and contact inside the callback.
+ */
+struct pjsip_regc_tsx_cb_param
+{
+    struct pjsip_regc_cbparam   cbparam;
+    int                         contact_cnt;
+    pj_str_t                    contact[PJSIP_REGC_MAX_CONTACT];
+};
+
+/** Type declaration for callback set in #pjsip_regc_set_reg_tsx_cb(). */
+typedef void pjsip_regc_tsx_cb(struct pjsip_regc_tsx_cb_param *param);
+
+/**
  * Client registration information.
  */
 struct pjsip_regc_info
@@ -191,6 +207,21 @@
 				     pj_uint32_t expires);
 
 /**
+ * Set callback to be called when the registration received a final response.
+ * This callback is different with the one specified during creation via
+ * #pjsip_regc_create(). This callback will be called for any final response
+ * (including 401/407/423) and before any subsequent requests are sent.
+ * In case of unregistration, this callback will not be called.
+ *
+ * @param regc	    The client registration structure.
+ * @param tsx_cb    Pointer to callback function to receive registration status.
+ *
+ * @return	    PJ_SUCCESS on success.
+ */
+PJ_DECL(pj_status_t) pjsip_regc_set_reg_tsx_cb(pjsip_regc *regc,
+				               pjsip_regc_tsx_cb *tsx_cb);
+
+/**
  * Set the "sent-by" field of the Via header for outgoing requests.
  *
  * @param regc	    The client registration structure.