ionConfig</code> defines two roles
        nodeA and nodeB which are equivalent
        to nodes in the test. Additionally it configures replication properties that
        ensure better timing for testing than the default ones.
    </p>
    <p>
        The actual test-code can be found in <code>OrderSpec</code>. Each test uses the method
        <code>withTwoOrderManagers</code> (implementing the
        <a href="http://www.scalatest.org/user_guide/sharing_fixtures#loanFixtureMethods">loan-fixture</a>-patt