update Kloxo-MR based on 6.5.1.a-2013090901 (change 'Kloxo' title to 'Kloxo-MR'; beside 'fs.file-max' also add others (like 'vm.swappiness') to optimize; instead warning for 'hostname', add 'universal' hostname to '/etc/hosts' in install process) also fix code for insert to sysctl.conf