Restore loading from solr Fixes #711
Batch Update job should set an array of titles. Fixes #729
Merge pull request #724 from projecthydra/restore_loading_from_solr

Restore loading from solr Fixes #711
Merge pull request #731 from projecthydra/fix_batch_update

Batch Update job should set an array of titles. Fixes #729
Update to active-fedora beta 3
Use hydra-derivatives 1.0.0.beta1
Use hydra-collections 3.0.0.beta1
Depends on hydra-head 9.0.0.beta1
Versions returns uris and not labels

Changes to ActiveFedora's versions method requires interpreting lables
from the uri that corresponds to the version.
Merge pull request #732 from projecthydra/fedora-4/versions

Versions returns uris and not labels
Checksum_audit_logs updated to account for changes in Fedora 4.

Notice that ChecksumAuditLog.prune_history now expects a pid rather than a version as the parameter.

In addition, Audit.logs() now does not expect a parameter.

Conceptually, the bigger change is that now ChecksumAuditLog will NOT include the datastream ID when it saves the data. In the pass, the datastream IDs was a parameter (although it was always 'content') and now we are not passing this parameter. The MySQL table checksum_audit_logs remains unchanged. We could later on update this code to handle multiple datastreams if we want to.