Don't use get_filepath_from_pkg_name for urls
Don't use get_filepath_from_pkg_name for urls

This fixes passing an url as eg. the rest_service_source_url input.
When a url is passed there, there's no point in looking for it
on disk - it needs to be downloaded

Cloudify-PS/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints,cloudify-cosmo/cloudify-manager-blueprints,cloudify-cosmo/cloudify-manager-blueprints,Cloudify-PS/cloudify-manager-blueprints,isaac-s/cloudify-manager-blueprints