When attempting 'aria plugins install' on the openstack plugin wagon from the website, I get the error:
Archive cloudify_openstack_plugin-2.2.0-py27-none-linux_x86_64-centos-Core.wgn is of an unsupported type. Only zip/wgn is allowed aria 0.1.1 The wgn looks ok (i.e. tar tzf works).
