More consistency for name parts
Announce it when we are not showing all the available items.
Added a toggle icon
Made initial row limit for facets configurable
Some changes to deal with the the horrible queries that are produced.

Very large queries are produced, mostly by long multi-value constraints.
This is bad because these queries perform badly and they quickly grow to
break the URI length limit. These changes try to be smarter about
filtering to avoid creating very long query constraints.