Scrolling is broken on the docs pages

[KevinSheedy]

Can't scroll down the page body or scroll down the side menu.
See: http://dalekjs.com/docs/assertions.html

OSX 10.9.2
Chrome: 35.0.1916.114
Safari: 7.0.2

[asciidisco]

Same reason as in #38

[Zeukkari]

Im trying to test dalekjs but the website has an infuriating custom scrollbar. Keyboard controls are disabled, scroll wheel is slow as hell and the tiny scrollbar is difficult to click and drag. Scroll wheel navigation is ok on chrome, but unbearably slow on firefox.