fdo#83512 Make use of OUStringHash and OStringHash

Change-Id: I33cafe68c798e3d54943ea1790fa4e73f85e525d
Signed-off-by: Stephan Bergmann <sbergman@redhat.com>
Font -> vcl::Font in vcl/unx/kde4

Change-Id: Iaa0c71e6d4f2b142821a6546772a3364b5eb7e29