Fixed init script change reloading

[ernoaapa]

When Chef changes init script, for example add bind_uri, restart
doesn't load the command line arguments. Need to stop and start to
get changes affect.

Demo:

• Install Docker to empty machine with :bind-uri defined.
• Docker get started but doesn't listen on given bind-uri.
• If you run command "restart docker" it still doesn't listen on given bind uri.
• If you run commands "stop docker" and "start docker" it will start to listen the given bind-uri.

[bflad]

I'll be able to look at this further tomorrow

[bflad]

Okay, yeah, definitely an oddity with Upstart: http://upstart.ubuntu.com/faq.html#reload

I'm going to merge this then refactor slightly to use initctl as a service instead with a notify reload immediately if possible (this will be useful for an future enhancement to optionally add Upstart jobs for containers).