Initialize uuid in CoreSession::CoreSession(switch_core_session_t*), make get_uuid return a const char* and a swigall

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11630 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_cpp.h

@@ -350,7 +350,7 @@ SWITCH_DECLARE(void) consoleCleanLog(char *msg);
 	/** \brief Get the uuid of this session	
 	 * \return the uuid of this session
 	 */
-		 char *get_uuid() const {
+		 const char *get_uuid() const {
 			 return uuid ? uuid : (char *) "uninitialized";
 		 };