Update VerifyBrowserVersionTest for Chrome 42

Change-Id: I66559919989c5545aa8266fee947c0bfc80d2b58

uitest/src/com/vaadin/tests/VerifyBrowserVersionTest.java

@@ -40,7 +40,7 @@ public class VerifyBrowserVersionTest extends MultiBrowserTest {
             // Chrome version does not necessarily match the desired version
             // because of auto updates...
             browserIdentifier = getExpectedUserAgentString(getDesiredCapabilities())
-                    + "41";
+                    + "42";
         } else {
             browserIdentifier = getExpectedUserAgentString(desiredCapabilities)
                     + desiredCapabilities.getVersion();