title: Scalatest sharing service instance across multiple test suites
body: <p>I have FlatSpec test classes which need to make use of a REST service for some fixture data.  When running all the tests in one go I only really want to instantiate the REST client once as it may be quite expensive.  How can I go about this and can I also get it to work for running just one test class when I am running in my IDE?</p>