Make FbTk::MemFun[12] inherit from std::unary/binary_function
Make FbTk::MemFun[12] inherit from std::unary/binary_function

this way, they can be used as inputs to std::bind1st and friends

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