migrate Metacat implementation to plain web services
The current Metacat implementation uses grid services. Need to migrate it to
use only web service methods using the new WS build system that is checked in
under the 'axis-only-branch'. The migration should happen in two phases.
1) get operation
2) query operation
These are already completed in the branch I think.
3) login/logout operations (will be deprecated eventually)
4) put operation