Added copyrights to cli, features, openflow, providers and web code
diff --git a/web/gui/src/main/webapp/libs/d3.js b/web/gui/src/main/webapp/libs/d3.js
index b969927..557db02 100644
--- a/web/gui/src/main/webapp/libs/d3.js
+++ b/web/gui/src/main/webapp/libs/d3.js
@@ -1,3 +1,21 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
!function() {
var d3 = {
version: "3.4.12"