avalonmediasystem/avalon — pull request #201 by mbklein (2013-12-05 20:57:49+00:00)
Title: Move MasterFile and Derivative absolute_location out of descMetadata to a dedicate plaintext datastream

This will make it easier to retrieve the information and act on it outside of Avalon, without having to know or care about ActiveFedora::SimpleDatastream's XML format.