Simplify gateway code (handles interrupts internally) and remove external dependencies. Ledmode is now always "enabled".

Remove unused libraries.
Add default CS/CE pin to Config.h
Add new variebles for voltage and current.
Add new internal command sent to controller when gateway is ready and online

libraries/MsTimer2/MsTimer2.h

@@ -1,23 +0,0 @@
-#ifndef MsTimer2_h
-#define MsTimer2_h
-
-#ifdef __AVR__
-#include <avr/interrupt.h>
-#else
-#error MsTimer2 library only works on AVR architecture
-#endif
-
-namespace MsTimer2 {
-	extern unsigned long msecs;
-	extern void (*func)();
-	extern volatile unsigned long count;
-	extern volatile char overflowing;
-	extern volatile unsigned int tcnt2;
-	
-	void set(unsigned long ms, void (*f)());
-	void start();
-	void stop();
-	void _overflow();
-}
-
-#endif