glance image param change, --os-image-url no longer working

* In packstack juno it appears that the glance option to
* load an image directly from an url has changed.  By default use download and
upload instead
* moving the call to the command line
* if product.version == "juno" use alternate version

Change-Id: I64d44df9bcb1b82c34006e8a85eff9f80628f9dd