RF24 moved to utility folder of library. This results in one less include in sketches!

Serial flush in sleep method also means one less code in examples.
Removed set(bool) in message. Not needed. getBool just calls getInt
__attribute__((packed)) for RPI compability
Print more info in send/read debug prints.
Get internalTemp returns full degrees and uses longer Vref delay
Fix debug print gateway prepend (wrong command/type)
Fixed problem in RelayWithButton example. Now working with ack in both directions.
Serial protocol changed (incoming serial message have an new ack-parameter)

libraries/MySensors/examples/BatteryPoweredSensor/BatteryPoweredSensor.ino

@@ -3,7 +3,6 @@
 // thread: http://forum.micasaverde.com/index.php/topic,20078.0.html
 
 #include <SPI.h>
-#include <RF24.h>
 #include <MySensor.h>
 
 int BATTERY_SENSE_PIN = A0;  // select the input pin for the battery sense point
@@ -27,7 +26,7 @@ void loop()
    // get the battery Voltage
    int sensorValue = analogRead(BATTERY_SENSE_PIN);
    Serial.println(sensorValue);
-
+   
    // 1M, 470K divider across battery and using internal ADC ref of 1.1V
    // Sense point is bypassed with 0.1 uF cap to reduce noise at that point
    // ((1e6+470e3)/470e3)*1.1 = Vmax = 3.44 Volts
@@ -48,8 +47,5 @@ void loop()
      gw.sendBatteryLevel(batteryPcnt);
      oldBatteryPcnt = batteryPcnt;
    }
-
-   // delay to allow transmissions to gateway to be completed before sleep
-   delay(300);
    gw.sleep(SLEEP_TIME);
 }