Added a method to return Document IDs from view row results. This is a temporary solution - do we need a subtype of Document that represents a view row?
By default, views are not reduced. Also clarified group-level 'exact'.
Increased logging for now
Renamed VIew --> ViewQuery.
Added some additional methods to ViewResults for result metadata
We now have a Row class to represent view query results, rather than confusingly overloading Document (since rows aren't documents...)
Renamed ViewResults --> ViewResult for consistency. This class stores the result of a single query.