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
[fr] follow #1765

Add deprecation notice to JsHelper
Merge pull request #1769 from cakephp/2.0-fr-follow

[fr] follow #1765
Removed "Vendor packages" pages

It makes no sense to keep an outdated, half empty page
Merge pull request #1771 from cakephp/removed-vendor-packages

Removed "Vendor packages" pages
Follow #1615 in other langs
[zh_CN] small improvements
[zh_CN] wrap lines at column 80
[zh_CN] done /zh/getting-started/*.rst
Merge branch 'master' into zh