Remove jQuery dependency from Stage.js
Remove jquery dependency from Input
Update Stage.prependLayer to use hasChildNodes() instead of children.length to determine if Stage.viewport has any child Nodes.
Using hasChildNodes is much faster: http://jsperf.com/haschildnodes-vs-children-length-vs-children-0/3
Update onDown handler to return early if the click if not a left click. #61
Add missing semicolon
Merge branch 'fix/#61' into develop
 * Added changeset for v1.1.4.1
Fix removeEventListener missing 3rd arguments that caused error in FF on windows.
Add Element.contains polyfill.
 * Merged remove/jQuery
 * Added build for Layer and build configuration
 * Added test to verify that the build works without requirejs
 * Updated build to include proper wrapper
 * Removed unnecessary components of Layer.js
 * Deleted old distribution
Add destroy methods to Scene, Layer, RenderableGroup, and Renderable. #65
Add missing semicolons.
Update renderable unit test to use the new Scene.destroy() method.
Apply container and layer css styles in Scene and Layer respectively. #52
Remove screen.css
Move jquery to assets/js. #64
 * Updated Layer.js build to only add to the root
 * Fixed issues with build spacing
Merge branch 'feature/#64' into develop
 * Updated norequire jquery