Added numbers.js, which currently only includes 'areEqualish' to determine whether a bunch of floats are all within some delta
Added a vector class
fixed vector to use 2-space indentation
Added fps.js, which allows you to easily add an fps counter to the page
Simple keyboard class that allows polling of key states.
Moved index.html to the root. That way you can host this at the root of the server more easily(?)