Added automatic XML formatter, some work on website
XmlTest.java:
-added sample driver that uses XmlFormatter to automaticall generate xml data

SimpleHttpServer.java:
-partial implementation of handler for driver widget xml

XmlFormatter.java:
-automatically generates XML based on the elements in its arraylist
-provides inner classes to represent controllers, sensors, and buttons

index.html, main.js, index.css:
-experimenting with layout