[zh_CN] done getting-started
Merge branch 'master' into zh
Merge pull request #1763 from blackpuppy/zh

[zh_CN] done getting-started
Follow up #1669 in other langs
Add deprecation notice to JsHelper
Merge pull request #1765 from cakephp/deprecate-js-helper

Add deprecation notice to JsHelper
Fix JavaScript name in warning