Code cleanup.

- firmware now supports SM buffering, so SMQB command is no longer needed
- commmented code and repeated fragments removed

button.h

@@ -29,7 +29,10 @@ private:
 	
 public:
 	
-	Button(byte p, ActionCb a): debounce(0), state(1), lastState(1), action(a), pin(p) {} ;
+	Button(byte p, ActionCb a): debounce(0), state(1), lastState(1), action(a), pin(p) {
+		pinMode(pin, INPUT_PULLUP);
+	}
+
 	void check() {
 		byte b = digitalRead(pin);
 		long t = millis();
@@ -49,10 +52,7 @@ public:
 		}
 
 		lastState = b;
-	};
-
-
-
+	}
 }; //button
 
 #endif //__BUTTON_H__