spike on canvas and event listeners
simple draw on canvas with eventlisteners for mouse
Added Save, clear, and restore functionality
Merge branch 'master' into spike_canvas_daniel_jeff

We're merging to keep the master branch free of any merge conflicts
merged master onto this branch and integrated sinatra with our awesome draw app.
Merge pull request #3 from gopher-snakes-2013/spike_canvas_daniel_jeff

Integrating draw.js with Sinatra skeleton