improved extract*Number functions from FbTk/StringUtil.cc
improved extract*Number functions from FbTk/StringUtil.cc

lukoko/fluxbox,lukoko/fluxbox,lukoko/fluxbox,luebking/fluxbox,naimdjon/fluxbox,naimdjon/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,olivergondza/fluxbox,lukoko/fluxbox,olivergondza/fluxbox,luebking/fluxbox,naimdjon/fluxbox,luebking/fluxbox,Arkq/fluxbox,lukoko/fluxbox,Arkq/fluxbox,Arkq/fluxbox,Arkq/fluxbox,naimdjon/fluxbox,naimdjon/fluxbox,luebking/fluxbox,luebking/fluxbox,Arkq/fluxbox