Sync github project for ovirt-imageio

[Nir Soffer]

Hi all,

Few weeks ago we renamed the vdsm-imaged project to ovirt-imageio - gerrit was
updated, but github still keep the old stale repositories.

To complete the change, we need:

Delete these projects from github:
- https://github.com/oVirt/vdsm-imaged
- https://github.com/oVirt/ovirt-image-proxy

Add:
- https://github.com/oVirt/ovirt-imageio

The new repository should be mirrored on github.

Thanks,
Nir