added <cstring> for compiling with gcc 4.4
added <cstring> for compiling with gcc 4.4

iLCSoft/LCIO,iLCSoft/LCIO,petricm/LCIO,iLCSoft/LCIO,petricm/LCIO,petricm/LCIO,petricm/LCIO,iLCSoft/LCIO,iLCSoft/LCIO,petricm/LCIO,petricm/LCIO,iLCSoft/LCIO