added copyright notice into JS

Author: pstrinkle

follow-cursor.js

@@ -5,7 +5,19 @@
  * URL: http://pstrinkle.github.io/jquery-follow-cursor
  * Author: Patrick Trinkle <https://github.com/pstrinkle>
  * Version: 0.1
- * License: Apache 2
+ * Copyright 2016 Patrick Trinkle
+ *
+ * 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.
  */
 (function ($) {
     function FollowCursor(config) {