SONAR-2746 Fix test

plugins/sonar-email-notifications-plugin/src/test/java/org/sonar/plugins/emailnotifications/EmailNotificationsPluginTest.java

@@ -26,6 +26,6 @@ import static org.fest.assertions.Assertions.assertThat;
 public class EmailNotificationsPluginTest {
   @Test
   public void should_get_extensions() {
-    assertThat(new EmailNotificationsPlugin().getExtensions()).hasSize(5);
+    assertThat(new EmailNotificationsPlugin().getExtensions()).hasSize(7);
   }
 }