puppetboard/utils.py: fix Python3 compatibility (#247)
puppetboard/utils.py: fix Python3 compatibility (#247)

If xrange() is not defined, alias it to range().
mterzo/puppetboard,johnzimm/xx-puppetboard,voxpupuli/puppetboard,johnzimm/puppetboard,mterzo/puppetboard,stoyansbg/puppetboard,stoyansbg/puppetboard,johnzimm/puppetboard,james-powis/puppetboard,james-powis/puppetboard,tparkercbn/puppetboard,voxpupuli/puppetboard,grandich/puppetboard,puppet-community/puppetboard,tparkercbn/puppetboard,johnzimm/xx-puppetboard,tparkercbn/puppetboard,tparkercbn/puppetboard,stoyansbg/puppetboard,johnzimm/xx-puppetboard,mterzo/puppetboard,voxpupuli/puppetboard,grandich/puppetboard,johnzimm/xx-puppetboard,mterzo/puppetboard,johnzimm/puppetboard,puppet-community/puppetboard,james-powis/puppetboard,puppet-community/puppetboard,grandich/puppetboard,grandich/puppetboard