ignore solr directory
Add migration to invert CfsDirectory/FileGroup relationship.
Code changes necessary to move make cfs directory belong_to file_group
rather than vice-versa. Perhaps not well refactored yet.
fix test
Simplify this a bit.
Simplify associations
Add touches along belong_to relationships.
Remove most of the old style hashes.
Remove more old style hash stuff.
Add timestamps to some tables and index updated_at on tables that have it.
This will facilitate view caching.
Add some view caching in important spots.
Do the file statistics better.
A bit of optimization for the collection index view.
Eager load more to speed up view rendering.
Add some caching.
View optimization for speed.
Add some caching/view optimization.
Fix repositories table so it works properly with caching from both
institution show and repository index views.
Add caching to institution show view.