Fixed up hierarchical browse view and its backing queries for schema changes. Indexing the collections object now so it will behave as any other object in most cases, including showing up as the root in the hierarchical browse.  Removed additional xpath instances from SetPathFilter to avoid possible concurrency issues.  Set a max query length when looking up container counts, otherwise solr can reject the query.  Decreased the default depth of the browse view, as it could bog considerably in deep collections.
Merge branch 'review_interface' of https://github.com/UNC-Libraries/Carolina-Digital-Repository into review_interface