hosts视频过滤

#优酷 0.0.0.0 stat.youku.com 0.0.0.0 static.lstat.youku.com 0.0.0.0 valb.atm.youku.com 0.0.0.0 valc.atm.youku.com 0.0.0.0 valf.atm.youku.com 0.0.0.0 valo.atm.youku.com 0.0.0.0 valp.atm.youku.com 0.0.0.0 vid.atm.youku.com 0.0.0.0 walp.atm.youku.com