Ported .js implementation to audio tags

Magic awesomeness
Update index.html
Made the buttons work using external javascript
Changed audio file
Added Slider for volume control.

Slider range 0-100, scaled to 0-1
WIP - Moving scripts into folder
WIP - Formatting
Correcting .js function conventions

Test, web page operates correctly. Additionally disabled the controls
for the audio source. Now the only way to interface is through the HTML
buttons.
Finalized Sprint 2 Code

Full commented and organized. Follows JavaScript coding conventions.
Implemented three control schemes: Buttons, Slider, Mouse Height.
Merge pull request #1 from cnplummer/HTML-Audio-Tag

Sprint 2 Finalized Code