[galaxy-commits] commit/galaxy-central: greg: Enhance the galaxy API for the Tool Shed to retrieve the latest installable revision from the Tool Shed from an installed repository, specifying a name and owner. Enhance the ~/scripts/api/install_tool_shed_repositories.py script to allow the changeset_revision to be optional, and if not specified, the latest installable revision will be installed for the repository specified by the name and owner.