Extends userguide page for simplicitySelectSlider to describe the new
dual-handled functionality.
Updates site to cleanup the css classes due to the prefixing added
to the next release and to document these changes.

https://github.com/t11e/simplicity/issues/31
Adds some more details to the changelog.
Updates the jsdoc for release 4.0.
Switches the site over to release 4.0.
Fixes documentation.js to pass jshint.
Upgrades Bootstrap from 2.1.1 to 2.3.0.
Unrolls the magic from the topnav.
Adds the current Simplcity release number to the navbar.
Updates the Getting Started page of the userguide to use the
same code as the simplicity-template-example project.
Removes references to a provided PHP search controller from the main
entry page. We need to provide some nice server side examples as
separate projects and can link to them once they are published.
Adds Examples and Plugins pages.
Adds userguide page for simplicitySlider and updates the
simplicitySelectSlider page a little.
Adds simplicity-example-movies to the Examples page.