- most were trivial
- missing group close or open
- extra space
- no doxygen comment
- name commad might open an implicit group
this hould also be implicit cosed but does not happen somtimes
- crazy: internal declared groups have to be closed internal
The ATmega1284P can be run on a breadboard with no external components, except
for a power supply and (if access to the serial is required) an USB-TTL adapter.
This commit adds it as a "board".
