Finish 31-check-ethernet-interrupt
Finish 39-place-energest-call-in-interrupt-functions
Coffee works!
Almost all tests succeed!
Refactored embedfs to romfs with autofs for choosing between cfs and romfs
Moved realfiles from embedfs to romfs
Merge branch 'origin/feature/27-adds-wrapper-for-coffee-file-system'

Conflicts:
	platform/easyRF/contiki-main.c
- Auto increment offset in romfs_read
- Dont seek forward explicitely in canvas_text, this is handled by the FS implementation
Succesfully tested the use of a font from external flash using cfs-coffee!