roll secrets in JUnit

java/src/test/java/com/microsoft/azure/eventhubs/lib/TestBase.java

@@ -15,7 +15,7 @@ public abstract class TestBase
 		
 	public static TestEventHubInfo checkoutTestEventHub() {
 		HashMap sasRule = new HashMap<String, String>();
-		sasRule.put(TestBase.SasRuleName, "LHbmplGdVC7Lo7A1RAXXDgeHSM9WHIRvZmIt7m1y5w0=");
+		sasRule.put(TestBase.SasRuleName, "-----SasKey------");
 		return new TestEventHubInfo("gojavago", "firstehub-ns", null, sasRule);
 	}