Refactor doc processing for AAC

Make show page for individual AAC decision

Fix page title for AAC show page

Format AAC Date added

Add details to AAC show page. Add helper methods.

Fix path for AAC search form.

Fix AAC judges list

Add AAC category and subcategory lookups for search filters

AAC Fix page title. Add helpers for index and show views.

Refactor AAC parties helper method
Merge pull request #60 from ministryofjustice/aac-views

TRIBS-151 TRIBS-157 Views for AAC