title: PHPUnit passing a test with no assertions within config
body: <p>I want to pass tests which get the following: "This test did not perform any assertions"</p>
  
  <p>I know I could add something like <code>assertTrue(true)</code> however is it possible to add something to the config to make these tests pass cleaner? </p>
  
  <p>I'm pretty sure this only happens since version PHPUnit 3.5.0 with the introduction of 
  <code>--strict</code></p>