Merge pull request #2 from flashpunk/master

added bower support
browserify support (NPM main)
Merge pull request #3 from schickling/patch-1

browserify support (NPM main)
Remove standalone version of library
Minor example cleanup
Add on-zoom and on-reposition callbacks

Using scope['someCallbackMethodName']() seems very kludgy, but since
we're purposefully not using isolate scope, we can't pass methods
directly into our directive scope, so we're using the "callback" attrs
as essentially keys to the methods on the parent scope.
Rebuilt the dist folder
Merge pull request #7 from m0g/master

Rebuilt the dist folder
Cleanup
Add README
Updated README
Refactor for style/best practices
Create service and track all map instances
Add mapbox API access token for 2.0 compatibility
Add marker getter/setter to mapbox service
Add tracking of map options
Style refactor of example page
Fixing scale-to-fit
Add jshint
Lint code