Copter: Notify the fence breach at the notification level

ArduCopter/fence.cpp

@@ -23,6 +23,10 @@ void Copter::fence_check()
     // if there is a new breach take action
     if (new_breaches) {
 
+        if (!copter.ap.land_complete) {
+            GCS_SEND_TEXT(MAV_SEVERITY_NOTICE, "Fence Breached");
+        }
+
         // if the user wants some kind of response and motors are armed
         uint8_t fence_act = fence.get_action();
         if (fence_act != AC_FENCE_ACTION_REPORT_ONLY ) {