Blacklight 4.0 upgrade
hydra-head 5.2.0 and blacklight 4.0 upgrades
HH520 upgrade fixes
Fixed tests
Fixed issues caused by deleting related objects
Worked around https://github.com/projecthydra/active_fedora/issues/36
#fixity_checks now actually filters on fixity check events
re-implemented before_destroy callback - protected method now uses solr
Removed Reloadable module (which backported #reload)
Removed Reloadable module (which backported #reload)
Closes #72
fix batch ingest tests after upgrade to hydra-head 5.2.0
Merge branch 'hydra-head-520' of github.com:duke-libraries/dul-hydra into hydra-head-520
upgrade capybara to 2.0.2 so that request tests pass