BaseQuery should no longer be abstract but be usable as is as soon as
we stripped ResultSet-specific tasks. As "Base" suggests something that
must be extended, the name no longer fits. So this is SimpleQuery right
now.
Because the `ListController' should only operate on data views,
data views should be a proxy to their underlying queries.
The methods `DataView::fromRequest()' and `DataView::sort()' are from now on deprecated
because they are relaced by `$backend->select()->from($viewName)' and `DataView::order()' respectively.
the Monitoring/View code was completly dropped in favor of
the DataView implementations, as new Backends otherwise
would require to implement two seperate query logics
refs #3801