Selecting multiple content and reordering source lists now works.
Selecting multiple content and reordering source lists now works.

The new code added to support the selectOnMouseDown property would always
clear and reset the selection on mouse up, which broke multiple-selection.
Now handled properly.

Also some of the drag code was not properly detecting content reorder
operations sending the wrong proposed drag operation to the delegate.

Eloqua/sproutcore,Eloqua/sproutcore,Eloqua/sproutcore