Many changes: added commandhandler module, macro functions, toggle function and

speed settings. Removed key repetition (no idea why it was there).

firmware/modelibmmodelm.c

@@ -106,6 +106,10 @@ void printMatrix(void) {
     sendString("---");
 }
 
+void toggle(void) {
+    // not used in this model/version
+}
+
 void setSpeed(uint8_t speed) {
     // not used in this model/version
 }