22.9.2012  added ATmega2560 in device.c
25.4.2014  added ATmega1284P in device.c
26.4.2014  added new ATtiny10 in device.c (renamed old Version to ATtiny10old)
           new Flag DF_NO_ADIW (ADIW, SBIW for new ATtiny10 not allowed)

21.5.2014  changes in directiv.c and avra.c:
	improving #ifndef and #ifdef #else by removing blacklist
	added code for #undef and .undef
24.5.2014
	added code for local labels
15.6.2014
	check_device test for NULL to avoid segfault

last update: 8.3.2015
Rolf Pfister
email: rolf.pfister@chem.uzh.ch
