Implement access hook.
Make display respond to access callbacks.
Squash dsm() and fix access on policy management.
Prevent the purge form from showing at all times.
Fix ingest permissions...

...  Was allowing on any object... Should only be collections.
Fix use of constant.
Fix too permissive handling of FEDORA_INGEST.
Add testing of hooked access hook implementation.
Fix/flesh out function comment.
Coding standards.
Merge pull request #68 from jordandukart/7.x

List/grid fix and coding standards.
Use count query to perform paging.

Large collections would cause PHP memory issues, as we tried to load an
entire collection into memory to get the count, before being sliced...
Flesh out documentation.
removed altered drupal title from collections tab
Fix a couple issues with the tests.

Introduction of the hooked access callback made FEDORA_METADATA_EDIT
required for change the COLLECTION_POLICY and RELS-EXT for the
respective collection management functions.

Dependent on https://github.com/Islandora/islandora/pull/358.
Merge pull request #67 from adam-vessey/7.x-hooked-access

7.x hooked access
Merge pull request #70 from adam-vessey/7.x-use-count-query

Use count query to perform paging.
Ensure results are distinct.

Because results get streamed immediately when requested and we're
selecting the model, we were ending up with duplicates.
Fix iterating when generating the display.
Merge pull request #72 from adam-vessey/7.x-collection-query-fix

Ensure selected tuples are distinct, and the iteration over the returned tuples.