Changed the naming of some LCD functions, so the names match better what the function does. Also moved around some prototypes for general cleanup.

Marlin/stepper.cpp

@@ -905,7 +905,7 @@ void st_synchronize()
     while( blocks_queued()) {
     manage_heater();
     manage_inactivity();
-    LCD_STATUS;
+    lcd_update();
   }
 }