- this should provide a slightly more naturally means to using transfer
constructors, for example
labelList list2(list1.transfer());
vs. labelList list2(xferMove(list1));
- returns a plain list where appropriate (eg, DynamicList, SortableList)
for example
labelList list2(dynList1.transfer());
vs. labelList list2(xferMoveTo<labelList>(dynList1));
- This was originally plan 'B', but it is actually probably more efficient
than using PtrDictionary anyhow.
- straightened out the return value logic, but it wasn't being used anywhere
anyhow.
- new 'updated_' data member avoids inadvertent execution in the read()
method when execution is turned off.
