An AMI image without ramdisk image should start.
An AMI image without ramdisk image should start.

It's possible with EC2 API but it fails with OS API.
This patch corrects that by returns 'None' value if AMI image doesn't contain 'ramdisk_id' metadata.

openstack-attic/melange,rackerlabs/melange,rackerlabs/melange,rajarammallya/melange,rajarammallya/melange,openstack-attic/melange,rackerlabs/melange,rajarammallya/melange,openstack-attic/melange