fixed script restart problems caused by wifi check cron job

changed cron update process and cron job

Fix in programArduino: skip trying to receive old settings when no ve…

…rsion number has been received

release 0.3.1, see docs.brewpi.com for changelog

small fix: +x on util scripts

Relase 0.3 - Integrated profile, start/stop logging, automated instal…

…l/updating

fix for error in previous hotfix (sorry in a hurry)

fix for script being unresponsive with an arduino that doesn't open s…

…erial

check avrVersionOld for not being None