small bug fix on "demoLevel"
small bug fix on "demoLevel"

dadoonet/cfp-devoxx,dadoonet/cfp-devoxx,CodeursEnSeine/cfp-2015,rasata/cfp-devoxx,CodeursEnSeine/cfp-2015,rasata/cfp-devoxx,CodeursEnSeine/cfp-2015,dadoonet/cfp-devoxx,CodeursEnSeine/cfp-2015,rasata/cfp-devoxx