assets/script.js is a bit of a monstrosity, which contains (approximately in order)
FastClick polyfill (https://github.com/ftlabs/fastclick) - obsolete
Modernizr - feature detection library for HTML5/CSS3
integrating yepnope (minified!) - conditional loading for polyfills
Bootstrap v3.0.3 (© 2013) (minified) - obsolete for us?
some Zanata code, including the global 'zanata' variable/namespace
zanata.createNS, zanata.form, zanata.loader, zanata.messages, zanata.modal, zanata.panel, zanata.tabs, zanata.tooltip
jQuery event handlers for .js-dropdown, .js-example, .js-reveal
jQuery code for nav highlighting (.is-active)
This should be cleaned up.