Use sensible defaults for lookup_by_id() options
Configure the cache timeout in the config file
Cache the ontology lookups
Test the caching of OntologyLookup::lookup_by_id()
Add PomCur::Role::MetadataAccess::all_metadata()
Remove debug code
Don't call get_metadata() multiple times in State
Remove unneeded imports
Add a blurb about how to comment on transfer page
Update to version v576