Container styles needed a javascript hack as of now since a block style
element is needed for overflow to work correctly. app.js adds a div
wrapper around the highlighed code (with line numbers) to allow overflow
to work correctly.
Vendor javascript files are now minified versions. The javacript files are
loaded via yepnopejs (Modernizr.load) using app.js. The finishes the
javascript portion of issue #4.