Reviewed by Harrison

    Reviewed by Harrison

        (khtml::DeleteSelectionCommand::performGeneralDelete): Add some more comments to
        make things more clear.
        * khtml/editing/selection.cpp:
        (khtml::Selection::toRange): Fixed the upstream and downstream calls so that the
        resulting positions do not cross block boundaries. This was a bug and caused some
        delete problems when whole blocks were selected. I will be addressing that issue
        more fully in upcoming changes.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@7968 268f45cc-cd09-0410-ab3c-d52691b4dbfc