Return a 404 when the datastream doesn't have content. Fixes #126
Merge pull request #128 from projecthydra/404_on_missing_ds_master

Return a 404 when the datastream doesn't have content. Fixes #126
Remove duplicate public group query
Merge pull request #130 from projecthydra/remove_duplicate_public_query_master

Remove duplicate public group query
Don't override how Blacklight displays the facets
Test hydra-head against AF master
Merge pull request #132 from projecthydra/test_against_af_master

Test hydra-head against AF master
Merge pull request #131 from projecthydra/no_blacklight_override

Don't override how Blacklight displays the facets
Should be able to check :update and :destroy permissions with a SolrDoc
Previously only :edit was supported.
Merge pull request #133 from projecthydra/fix_edit_with_solr_doc

Should be able to check :update and :destroy permissions with a SolrDoc
Removed deprecated classes and methods
Merge pull request #134 from projecthydra/remove_model_mixins

Removed deprecated classes and methods
Changes default create permissions.
Old way is to allow registered users to create anything by default. New way is to not allow users, registered or not, to create anything by default. You must explicity grant create permissions in your own Ability#create_permissions method.
Add setter: Hydra::AccessControls::Permissions#permissions=
Merge pull request #135 from afred/change-default-create-permissions

Changes default create permissions.
Merge pull request #136 from projecthydra/set_permissions

Add setter: Hydra::AccessControls::Permissions#permissions=