Merge branch 'MK3' into update_readme

Firmware/config.h

@@ -45,7 +45,7 @@
 //LANG - Multi-language support
 //#define LANG_MODE              0 // primary language only
 #define LANG_MODE              1 // sec. language support
-#define LANG_SIZE_RESERVED     0x2f00 // reserved space for secondary language (12032 bytes)
+#define LANG_SIZE_RESERVED     0x2b00 // reserved space for secondary language (11008 bytes)
 
 
 #endif //_CONFIG_H

Firmware/timer02.c

@@ -2,6 +2,9 @@
 // use atmega timer2 as main system timer instead of timer0
 // timer0 is used for fast pwm (OC0B output)
 // original OVF handler is disabled
+
+#ifdef SYSTEM_TIMER_2
+
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include "Arduino.h"
@@ -166,3 +169,5 @@ void noTone2(__attribute__((unused)) uint8_t _pin)
 {
 	PIN_CLR(BEEPER);
 }
+
+#endif //SYSTEM_TIMER_2