title: Add logging listener for whole test suite
body: <p>I am using JUnit4 and organized all my tests in a Test suite, annotated with a @RunWith(Suite.class) annotation.</p>
  
  <p>Now I want to register a custom logger to JUnit, so at each beginning and completion of each test a log message is printed.</p>
  
  <p>I already found the RunNotifier and RunListener classes, but don't know how I can add my listener from within my TestSuite definition to JUnit. </p>
  
  <p>Any ideas?</p>