Add missing LICENSE headers to the source files

This patch:
- adds missing LICENSE headers to the source files
- set's puppeteer version to 0.1.0
- set's repository field in package.json

test/frame-utils.js

@@ -1,3 +1,19 @@
+/**
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed 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.
+ */
+
 const utils = module.exports = {
   /**
    * @param {!Page} page