mesos-[master | slave] service is ready even when [master | slave] recipe wasn't performed.

When either `mesosphere` or `build_from_source` was performed,  upstart script installed by this recipe saids that `start on stopped rc RUNLEVEL=[2345]`.

If os was rebooted in this state,  un-configured mesos master and slave would be up.

So, I think it's better that 

* `mesosphere` and `build_from_source` installs upstart script with `stop on ...`
* `master` and `slave` installs upstart script with `start on ...`

What do you think about it?