Make deletion of collection remove all children regardless of state.
Betterer coding.
Merge pull request #88 from jordandukart/7.x-state-deletion

Make deletion of collection remove all children regardless of state.
Removed some white spaces and ensured code is compliant with code sniffer.
Merge https://github.com/Islandora/islandora_solution_pack_collection into 7.x-manage-xacml