Revert "fix 62d8a7699300eef56d811765e860e2883c0313ac"

This reverts commit 174659b7b15ea7ea08ed5b8d464373bd80bcc175.
Revert "更新 dnsmasq-reloader 的安装目录"

This reverts commit 62d8a7699300eef56d811765e860e2883c0313ac.
Revert "gw-monitor: send notifications on router change; add dnsmasq-reloader:"

This reverts commit bc9c537d849e270d3db8eec57d5e94920463d2dc.

Conflicts:
	dnsmasq-reloader/DRAppDelegate.h
	dnsmasq-reloader/DRAppDelegate.m
	dnsmasq-reloader/DRHelper.h
	dnsmasq-reloader/main.m