[WIP] Fixes #19 - Requires CKAN 2.1.1

Changes required to work with organizations.

Includes a new search schema, and a paster command specifically for moving packages and cleaning up spam at the same time

Really need to check that the group controller in ckan 2.1.1 is doing the correct thing by faceting by owner_org instead of organization. If not need to submit to core, and copy the controller in datahub in the meantime.