packet handling, acks, bones of application layer

embedded/README.md

...ed/atsams70-tinyrouter/atsams70-tinyrouter/Debug/Makefile

.../atsams70-tinyrouter/atsams70-tinyrouter/Debug/makedep.mk

...-tinyrouter/atsams70-tinyrouter/atsams70-tinyrouter.cproj

...atsams70-tinyrouter/atsams70-tinyrouter/src/application.c

...atsams70-tinyrouter/atsams70-tinyrouter/src/application.h

embedded/atsams70-tinyrouter/atsams70-tinyrouter/src/node.h

...dded/atsams70-tinyrouter/atsams70-tinyrouter/src/packet.c

...dded/atsams70-tinyrouter/atsams70-tinyrouter/src/packet.h

...ms70-tinyrouter/atsams70-tinyrouter/src/packet_handling.c

...ms70-tinyrouter/atsams70-tinyrouter/src/packet_handling.h

...ed/atsams70-tinyrouter/atsams70-tinyrouter/src/tinyport.c

js/serialterminal.js