[tdwg-tapir] metadata response

Hello, the metadata response in TAPIR (intended for registries and humans) was finally reviewed by Renato, Javier and myself. We would like to update the TAPIR schema to support this response integrating true dublin core and GeoRSS elements with their respective namespaces:

http://ww3.bgbm.org/protocolwiki/MetadataReview

Please let us now if you have improvements in mind, especially if you consider its use for registries and alike.

-- Markus