If the protocol is not present for the master url, add it.
If the protocol is not present for the master url, add it.

But if it is present (could be HTTPS), do not always prepend
the HTTP protocol.

box-labs/ClusterRunner-Dashboard,josephharrington/ClusterRunner-Dashboard,box-labs/ClusterRunner-Dashboard,box-labs/ClusterRunner-Dashboard,josephharrington/ClusterRunner-Dashboard,josephharrington/ClusterRunner-Dashboard