jvcl/run/JvListBox.pas fixes
* in November 2011 in upstream there was an initial simplified versio nof the patch, where SeparateItems looked ugly, twice ugly if combined qith "Zebra" mode
* 05.11.2013 i made a lazy automatic merge and did not checked the results. They actually were devastating in some modes, fixed now
* also added SelectedColorIgnored - an option to supress "SelectedColor", as it is not needed for r/o lists and its co-existense with "zebra" mode yields... questionable outlook