Add method DELETE, PUT into allowedMethods of CORS

Because WebDriver also supports method DELETE,
so you couldn't use delete method unless adding that method
into allowed methods of Cross-Origin Filter.

java/server/src/org/openqa/selenium/jetty/server/JettyServer.java

@@ -110,7 +110,7 @@ public JettyServer(BaseServerOptions options, HttpHandler handler) {
       FilterHolder
           filterHolder = servletContextHandler.addFilter(CrossOriginFilter.class, "/*", EnumSet
           .of(DispatcherType.REQUEST));
-      filterHolder.setInitParameter("allowedOrigins", "*");
+      filterHolder.setInitParameter("allowedMethods", "GET,POST,PUT,DELETE,HEAD");
 
       // Warning user
       LOG.warning("You have enabled CORS requests from any host. "