Merge branch 'MK3' into MK3_PF-build_Fix_EN_ONLY

Firmware/messages.c

@@ -176,4 +176,4 @@ const char MSG_FANCHECK_PRINT[] PROGMEM_N1 = "Err: PRINT FAN ERROR"; ////c=20
 const char MSG_M112_KILL[] PROGMEM_N1 = "M112 called. Emergency Stop."; ////c=20
 const char MSG_ADVANCE_K[] PROGMEM_N1 = "Advance K:"; ////c=13
 const char MSG_POWERPANIC_DETECTED[] PROGMEM_N1 = "POWER PANIC DETECTED"; ////c=20
-
+const char MSG_LCD_STATUS_CHANGED[] PROGMEM_N1 = "LCD status changed";

Firmware/messages.h

@@ -176,6 +176,7 @@ extern const char MSG_FANCHECK_PRINT[];
 extern const char MSG_M112_KILL[];
 extern const char MSG_ADVANCE_K[];
 extern const char MSG_POWERPANIC_DETECTED[];
+extern const char MSG_LCD_STATUS_CHANGED[];
 
 #if defined(__cplusplus)
 }

Firmware/ultralcd.cpp

@@ -8968,6 +8968,7 @@ void lcd_ignore_click(bool b)
 }
 
 void lcd_finishstatus() {
+  SERIAL_PROTOCOLLNRPGM(MSG_LCD_STATUS_CHANGED);
   int len = strlen(lcd_status_message);
   if (len > 0) {
     while (len < LCD_WIDTH) {