Translation fixes based on 0.3 feedback

* agent_contact.region to "State/Region"
* agent_name.primary_name to "Primary Part of Name"
* actions.automate to "Automatically generate"
* archival_object.automate_title to "Automatically generate title"
* subject.ref_id to "Authority ID" (to match agent_name.authority_id)
Merge pull request #258 from anarchivist/0.3-translation-tweaks

Translation fixes based on 0.3 feedback