added some documentation to beginning of updateModule.js
added api methods to tools.js, added commets to updateModule.js
forgot to add draw.html.erb
reset head didnt work
Merge branch 'master' of github.com:haotianwang/CanvUs

accidentally had to git reset head, and this happens
added DrawingModule methods to tools.js, connected tools.js to updateModule.js, changed stu socket-controller to spit back actions
added updateModule as required in applcation.js
added to assets.precomile updateModule
added all js and css files to prod.rb for precompile, removed required line in app.js
Fix merge conflict for SocketsController
Add comments to methods and do some minor refactoring