removed util folder which interfered with eclipse
Merge remote-tracking branch 'upstream/ArduinoDue' into ArduinoDue
Merge branch 'ArduinoDue' of https://github.com/collin80/GEVCU into ArduinoDue
switched to simpler singleton instanciation (local static is better than global static)
add status class, refactor sys_io to a class for future use
Merge pull request #59 from neuweiler/ArduinoDue

sys_io became a class, added initial version of Status class