minor refactoring in Execution

.settings/edu.umd.cs.findbugs.core.prefs

 #FindBugs User Preferences
-#Thu Jun 25 14:06:30 CEST 2015
+#Thu Jul 02 16:19:05 CEST 2015
 detector_threshold=2
 effort=max
 excludefilter0=.fbExcludeFilterFile|true

src/main/java/teetime/framework/Execution.java

@@ -73,7 +73,7 @@ public final class Execution<T extends Configuration> implements UncaughtExcepti
 	 *            to be used for the analysis
 	 */
 	public Execution(final T configuration) {
-		this(configuration, false, new TerminatingExceptionListenerFactory());
+		this(configuration, false);
 	}
 
 	public Execution(final T configuration, final boolean validationEnabled) {