Add server restart cancel script and more

mc_restart is now launching new script mc_restart_sleeper, this way it is posible exit mc_restart and let countdown running.
mc_restart_cancel next is new script.
mc_run can't be now launched without special argument to ensure that it is noly started from mc_start.
Webside server status pooling is increased from 500 to 800.
Repair bug: mc_server_static.php was chaking wrong file for server restart.
Added two new TODO and other two are now complete so removed.