chore: update copyrights in docs to 2017 (#3067)

Author: wKoza

LICENSE

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2016 Google, Inc.
+Copyright (c) 2017 Google, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -152,7 +152,7 @@ gulp install-example-angular
 
 
 ## License
-Powered by Google ©2010-2016. Code licensed under an [MIT-style License](https://github.com/angular.io/blob/master/LICENSE). Documentation licensed under [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/).
+Powered by Google ©2010-2017. Code licensed under an [MIT-style License](https://github.com/angular.io/blob/master/LICENSE). Documentation licensed under [CC BY 4.0](http://creativecommons.org/licenses/by/4.0/).
 
 [travis-badge]: https://travis-ci.org/angular/angular.io.svg?branch=master
 [travis-badge-url]: https://travis-ci.org/angular/angular.io

public/_includes/_footer.jade

@@ -52,6 +52,6 @@ div(class="main-footer" data-swiftype-index="false")
         li <a href="https://angular.cn/">中文版</a>
 
   footer(class="background-midnight")
-    small.text-caption Powered by Google ©2010-2016. Code licensed under an <a href="/license">MIT-style License</a>. Documentation licensed under <a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.
+    small.text-caption Powered by Google ©2010-2017. Code licensed under an <a href="/license">MIT-style License</a>. Documentation licensed under <a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.
     a(aria-label="View Style Guide" href=styleguide title="Style Guide" class="styleguide-trigger")
       span.icon-favorite

public/license.txt

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2014-2016 Google, Inc.
+Copyright (c) 2014-2017 Google, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

tools/plunker-builder/plunkerBuilder.js

@@ -21,7 +21,7 @@ module.exports = {
 buildCopyrightStrings();
 
 function buildCopyrightStrings() {
-  var COPYRIGHT = 'Copyright 2016 Google Inc. All Rights Reserved.\n'
+  var COPYRIGHT = 'Copyright 2017 Google Inc. All Rights Reserved.\n'
     + 'Use of this source code is governed by an MIT-style license that\n'
     + 'can be found in the LICENSE file at http://angular.io/license';
   var pad = '\n\n';