Update Makefile

fix bug

The ip result is null , exit processing.

Merge pull request mingxiaoyu#37 from mingxiaoyu/dev

1.4.7

Merge pull request mingxiaoyu#33 from mingxiaoyu/dev

Alidns  multiple  domain

Merge pull request mingxiaoyu#30 from mingxiaoyu/dev

Dev

Merge pull request mingxiaoyu#27 from mingxiaoyu/dev

remove shadowsockstab

Merge pull request mingxiaoyu#16 from mingxiaoyu/dev

fix dns bug

fix bug "禁用下载测速“

fix bug about cron at reboot