Source from https://github.com/douglascrockford/JSON-js/blob/3d7767b/json2.js
* Deprecate jquery.json which is a little dated and less efficient
because it always downloads the entire polyfill to the client
even if it isn't needed. We also can't add a skip function to
jquery.json because it exposes a different interface ($.toJSON
instead of JSON.stringify).
* Update 'mediawiki.inspect' to use 'json' instead.
* Update 'jquery.jStorage' to use 'json' instead (doesn't need
a change to its code as it looks for either JSON.stringify or
$.toJSON by design).
Change-Id: I8978be3491b08fbbfd83f1306e816b1b20f16161
cde0829227