using AF7; using no-reply git version of hydra-head 6.4.0; remove #delegate_to from OregonDigital
Updated appropriate gems, fixed specs for AF7.
Switched OD to AF 7's RDF Datastream, quieted deprecation warnings from rights metadata.
Fixed specs, moved everything to upstream AF7 RDF.

Need to fix a bug with RdfIdentifiable upstream for this to be pretty.
switching back to no-reply
Finished up move to AF7.
Merge pull request #195 from OregonDigital/feature/af7

Feature/af7