Add support for service.supports(:status => true)

[andreacampi]

In my cookbook I have a test for:

server("my-example").must_be_running

This might be an upstart service that actually runs "ruby example.rb", which means process inspection will not find it.

It would be nice to use the ":status => true" concept from Chef, i.e. using an init-specific method of determining if it's running.

[wheresalice]

The default process inspection also matches too readily, so if you have a process 'example-server' running then service('example').must_be_running will pass.

It's worth noting for testing that the Chef docs suggest that Redhat has different default behaviour, whereby it has status => true by default unless a pattern is provided.