Added translate of canvas. Need to translate mouse coordinate
Fixed sign of translate to get global coordinate of mouse click
Added package.json with browserify via --save-dev
added quick browserify example
Added grunt file and watchers
set up grunt file to bundle app and tests
set up grunt file to bundle app and tests. Also run local tests with watchify
updated readme
working on refactoring to make standalone nav module
Refactored using browserify
Added scale method attached to mousewheel
Got source maps to work by disabling testing
Implemented scaling function around mouse position
Improved translate to incorporate current scale
change inbounds method to use global points only
Drag, translate and scale working together