Make PHPUnit_Framework_TestListener implementations compatible to 4.0.

tests/startsessionlistener.php

@@ -20,6 +20,9 @@ class StartSessionListener implements PHPUnit_Framework_TestListener {
 	public function addIncompleteTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
 	}
 
+	public function addRiskyTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
+	}
+
 	public function addSkippedTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
 	}
 

tests/testcleanuplistener.php

@@ -25,6 +25,9 @@ class TestCleanupListener implements PHPUnit_Framework_TestListener {
     public function addIncompleteTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
     }
 
+	public function addRiskyTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
+	}
+
     public function addSkippedTest(PHPUnit_Framework_Test $test, Exception $e, $time) {
     }