Replaced Kill by Stop. If the printer is stopped. Fix the error and use M999 to restart.

Moved the PID_dT in the Ki and Kd calculation from the configuration.h to temperature.cpp

Marlin/Marlin.h

@@ -162,6 +162,9 @@ void ClearToSend();
 void get_coordinates();
 void prepare_move();
 void kill();
+void Stop();
+
+bool IsStopped();
 
 void enquecommand(const char *cmd); //put an ascii command at the end of the current buffer.
 void prepare_arc_move(char isclockwise);