polished usage for json runner api
polished usage for json runner api

cgourlay/moco,ForrestAlfred/moco,LiuShulong/moco,dreamhead/moco,rickhan2014/moco,rickhan2014/moco,jasonchaffee/moco,ysjian/moco,LiuShulong/moco,ruiruiguo/moco,sandyway/moco,zhigang1992/moco,dreamhead/moco,yonglehou/moco,cgourlay/moco,ysjian/moco,sandyway/moco,ruiruiguo/moco,zhigang1992/moco,yonglehou/moco,jasonchaffee/moco,ForrestAlfred/moco,ForrestVV/moco,ForrestVV/moco