Make cloneGerritRepo method

This will allow some nasty hacks in later patch sets.

Change-Id: I6107c02d353aca72e3c70a4e92abdb55ff667d81
Capiunto has revisions now

So this no longer breaks and there's no longer a need to filter out.

Change-Id: I987e9a8230d09bed22ea83e94ca7c086ef54c41d