Refactor Client-Side JavaScript

[imaustink]

Much of the client JS has become unruly, static.js for example, is a pile of spaghetti heavily spiced with jQuery.

I propose the following changes:

• Refactor all of /static/static.js.
  • Modularize/Organize into components.
  • Use CanJS instead of jQuery where possible.
  • Consider using Bootstrap's scroll spy plugin.
• Remove plugins from /static/js
  • Replace with NPM modules
  • Consider rewriting them with CanJS
• Remove most or all of the JS for responsive stuff. Everything I have seen so far could be done with pure CSS.
• Write tests for as much of the client code as is reasonable.