Allow Actor#update_visibility to be overriden (e.g. for embargo)
Merge pull request #671 from projecthydra/allow_override_visibility_in_actor

Allow Actor#update_visibility to be overriden (e.g. for embargo)
Fix test for the ntriples mime-type
This was changed in ActiveFedora 7.1.1
https://github.com/projecthydra/active_fedora/commit/bbcd20147c04657464c6bda5277cf846d300b07e
Merge pull request #679 from projecthydra/fix_download_controller_spec

Fix test for the ntriples mime-type