GCS_MAVLink: added severity to send_statustext_all()

libraries/GCS_MAVLink/GCS.h

@@ -163,7 +163,7 @@ public:
       connections. This function is static so it can be called from
       any library
     */
-    static void send_statustext_all(const prog_char_t *fmt, ...);
+    static void send_statustext_all(MAV_SEVERITY severity, const prog_char_t *fmt, ...);
 
     /*
       send a MAVLink message to all components with this vehicle's system id

libraries/GCS_MAVLink/GCS_Common.cpp

@@ -1169,7 +1169,7 @@ void GCS_MAVLINK::send_ahrs(AP_AHRS &ahrs)
 /*
   send a statustext message to all active MAVLink connections
  */
-void GCS_MAVLINK::send_statustext_all(const prog_char_t *fmt, ...)
+void GCS_MAVLINK::send_statustext_all(MAV_SEVERITY severity, const prog_char_t *fmt, ...)
 {
     for (uint8_t i=0; i<MAVLINK_COMM_NUM_BUFFERS; i++) {
         if ((1U<<i) & mavlink_active) {
@@ -1181,7 +1181,7 @@ void GCS_MAVLINK::send_statustext_all(const prog_char_t *fmt, ...)
                 hal.util->vsnprintf_P((char *)msg2, sizeof(msg2), fmt, arg_list);
                 va_end(arg_list);
                 mavlink_msg_statustext_send(chan,
-                                            MAV_SEVERITY_CRITICAL,
+                                            severity,
                                             msg2);
             }
         }