TreeViewJS is a simple, easy to use and customizable jQuery treeView control.
Install using bower
$ bower install treeviewjs --saveDemo and instructions can be found here - http://samarsault.github.io/TreeViewJS
Master branch contains a basic setup of the latest TreeViewJS version, while gh-pages contains the site.
So, download or clone the master branch of this repo to easily get started, or see the site for more details. You can also see this for the source of the site and more examples