Added 'SugarJS' 1.3.8.

Straight from https://github.com/andrewplummer/sugar/archive/1.3.8.zip.

[![Build Status](https://secure.travis-ci.org/bmcustodio/cdnjs.png?branch=sugarjs-1.3.8)](https://travis-ci.org/bmcustodio/cdnjs)