fix azure artifact so it works with managed images as well as VHDs
fix azure artifact so it works with managed images as well as VHDs

paulmey/packer,tas50/packer,mitchellh/packer,grubernaut/packer,grubernaut/packer,tas50/packer,bryson/packer,grubernaut/packer,mkuzmin/packer,pecigonzalo/packer,mkuzmin/packer,mkuzmin/packer,grubernaut/packer,ricardclau/packer,dave2/packer,tb3088/packer,timsutton/packer,pecigonzalo/packer,mitchellh/packer,mitchellh/packer,timsutton/packer,rnaveiras/packer,paulmey/packer,rnaveiras/packer,youhong316/packer,youhong316/packer,paulmey/packer,hashicorp/packer,bryson/packer,timsutton/packer,mitchellh/packer,tb3088/packer,tas50/packer,dave2/packer,bryson/packer,hashicorp/packer,hashicorp/packer,paulmey/packer,pecigonzalo/packer,dave2/packer,hashicorp/packer,rnaveiras/packer,tas50/packer,tas50/packer,youhong316/packer,grubernaut/packer,tb3088/packer,ricardclau/packer,tb3088/packer,ricardclau/packer,timsutton/packer,mkuzmin/packer,rnaveiras/packer,timsutton/packer,ricardclau/packer,dave2/packer,ricardclau/packer,grubernaut/packer,dave2/packer,rnaveiras/packer,paulmey/packer,paulmey/packer,bryson/packer,mitchellh/packer,youhong316/packer,tb3088/packer,ricardclau/packer,tas50/packer,bryson/packer,mkuzmin/packer,timsutton/packer,mkuzmin/packer,bryson/packer,pecigonzalo/packer,tb3088/packer,rnaveiras/packer,dave2/packer,youhong316/packer,youhong316/packer