Code review comment for lp:~rconradharris/glance/registry_db_migration

OK, so I had an additional thought about where the database migration code should go. Since the database migration is only for the reference implementation Glance registry server (bin/glance-registry), I'm thinking that the bin/glance-manage program should be renamed bin/glance-registry-manage. While I understand your comment about having the glance-admin program merge with the glance-manage program in this patch, the two do different things. The database migration commands are particular only to the reference implementation registry server, and not to Glance as a whole, so I think the tool name should reflect that...thoughts?

Note that I think glance-upload can and should be merged into the glance-admin program, just not these specific registry database commands.