Fix problems found after verification of local commits.

libraries/MySensors/examples/PressureSensor/PressureSensor.ino

@@ -6,7 +6,6 @@
 #define BARO_CHILD 0
 #define TEMP_CHILD 1
 
-#define LIGHT_SENSOR_ANALOG_PIN 0
 unsigned long SLEEP_TIME = 60000; // Sleep time between reads (in seconds)
 
 Adafruit_BMP085 bmp = Adafruit_BMP085();      // Digital Pressure Sensor 

libraries/MySensors/examples/RelayWithButtonActuator/RelayWithButtonActuator.ino

@@ -66,6 +66,10 @@ void loop()
  
 void incomingMessage(const MyMessage &message) {
   // We only expect one type of message from controller. But we better check anyway.
+  if (message.isAck()) {
+     Serial.println("This is an ack from gateway");
+  }
+
   if (message.type==V_LIGHT) {
      // Change relay state
      state = message.getBool();