Fixed a bug causing it to always turn on in programming mode

(THIS is exactly why I usually put the constants first in an if statement)

GCode.ino

@@ -169,7 +169,7 @@ void setup() {
   // do a little power on color burst like Tadao board does
   powerOnLEDBurst(OperatingMode);
 
-  if( OperatingMode = MODE_PROGRAMMING ) {
+  if( MODE_PROGRAMMING == OperatingMode ) {
     // track pull time so we can reset the board if held for a certain length of time
     Prog_TriggerDownStart = millis();
   }