• Don't restart resolver every time, the name in ps is different than
  the service name.
• Resolver is mandatory service (unbound wasn't, there could be a
  different resolver, but some resolver is needed now).
• Parameter placement with uci.

If unbound is not installed or is disabled, don't even examine it if
it's running.

Add a configuration option to forbid some services from being restarted
by the watchdog.

If it is installed and enabled.

With extra check to see if it actually resolves.

By using the busybox one unconditionally

So don't try to revive it if it is not installed.

Include 3-clause BSD licence headers to the tiny utilities.

No need to do so, this is more lightweight.

Log the error to restart a service instead of crashing.

Especially the updater. If the updater restarts cron, the updater was
killed before. This is meant to avoid that.

They are needed, since this is global configuration.

A script to be run periodically and check for health of daemons.