Removed SetSystemClockPrescaler() macro, the clock_prescale_set() avr-libc macro has been corrected in recent avr-libc versions

Bootloaders/DFU/BootloaderDFU.c

@@ -109,8 +109,8 @@ int main (void)
 	MCUSR &= ~(1 << WDRF);
 	wdt_disable();
 
-	/* Disable Clock Division */
-	SetSystemClockPrescaler(0);
+	/* Disable clock division */
+	clock_prescale_set(clock_div_1);
 	
 	/* Relocate the interrupt vector table to the bootloader section */
 	MCUCR = (1 << IVCE);

Bootloaders/DFU/BootloaderDFU.h

@@ -42,6 +42,7 @@
 		#include <avr/boot.h>
 		#include <avr/pgmspace.h>
 		#include <avr/eeprom.h>
+		#include <avr/power.h>
 		#include <stdbool.h>
 	
 		#include "Descriptors.h"