Added List::Util::XS to check if Scalar::Util is installed in the required c version.
Added List::Util::XS to check if Scalar::Util is installed in the required c version.

brandonshults01/otrs,muehlbauer/otrs,eliasp/otrs,nilei/otrs,moritz/otrs,StCyr/otrs,crythias/otrs,xhoy/otrs,oiami/otrs,rudy500/otrs,thorsteneckel/otrs,eliasp/otrs,balazj/otrs,s7design/otrs,muehlbauer/otrs,rudy500/otrs,StCyr/otrs,brandonshults01/otrs,moritz/otrs,nilei/otrs,PortgasDAce/otrs,nilei/otrs,xhoy/otrs,MBRG/otrs,MBRG/otrs,muehlbauer/otrs,rudy500/otrs,crythias/otrs,balazj/otrs,s7design/otrs,xhoy/otrs,mburggraf/otrs,linearregression/otrs,mburggraf/otrs,mburggraf/otrs,PortgasDAce/otrs,StCyr/otrs,linearregression/otrs,s7design/otrs,thorsteneckel/otrs,eliasp/otrs,muehlbauer/otrs,oiami/otrs,MBRG/otrs,xhoy/otrs,balazj/otrs,muehlbauer/otrs,linearregression/otrs,xhoy/otrs,nilei/otrs,mburggraf/otrs,MBRG/otrs,balazj/otrs,PortgasDAce/otrs,PortgasDAce/otrs,thorsteneckel/otrs,StCyr/otrs,moritz/otrs,nilei/otrs,oiami/otrs,brandonshults01/otrs,eliasp/otrs,MBRG/otrs,s7design/otrs,crythias/otrs,StCyr/otrs,moritz/otrs,brandonshults01/otrs,moritz/otrs,linearregression/otrs,thorsteneckel/otrs,rudy500/otrs,oiami/otrs,crythias/otrs,eliasp/otrs,PortgasDAce/otrs,s7design/otrs,mburggraf/otrs,crythias/otrs,linearregression/otrs,thorsteneckel/otrs,brandonshults01/otrs,balazj/otrs,rudy500/otrs,oiami/otrs