minor changes
think there
insignificant
add macro for ATMEL_BLOCK_SIZE
change macro name to BLOCK_SIZE
change name from PAGE_SIZE to BLOCK_SIZE
Merge branch 'add_debug' into oldupdate

Conflicts:
	src/atmel.c
insignificant
Squashed commit of the following:

- add error check to atmel select page
- add macro for ATMEL_BLOCK_SIZE
- add dfu_clear_status to dfu on error. see avr32760
- add debug comments and DEBUG strings
Merge branch 'erase_check' into oldupdate

Conflicts:
	src/atmel.c
	src/atmel.h
	src/commands.c