all done

The name problem has been handled. The common object now manages both the name and the immutableName flag. I've also fixed handle now so that symbolic references are expressed in XML as text content to avoid a round-trip issue similar to the one I saw with name.

Tomorrow then I need to start work on the remaining round-trip issues, like more testing. (The CowDb sample 0 only goes so far!) Of course for that, I need to add to RoleML so that we can return a Rolon as RoleML in a response.