improved child monitoring
added dependency checking to updating
lots of work on updater
0.2.1
updated device_config
0.2.2
0.2.3
adding aaeon updates, some nexus tweaks
adding aaeon updates, some nexus tweaks
Merge branch 'aaeon' of github.com:lamassu/lamassu-machine into aaeon

Conflicts:
	lib/id003/id003rs232.js
WIP
added wifi_check for aaeon
try harder to kill child
added temperature reporting
rs232 now works with mock device
better error reporting
touch event tweaking
lots of build fixes
make arrow disappear
tweaked wifi_check