Added 2 more extension to View objects
Added 2 more extension to View objects

1. window resize event aware;
2. opt-in svg canvas injection; (working on auto-resize upon window
resize)

bluekvirus/Stage.js,bluekvirus/Stage.js,mr-beaver/Stage.js,ragingcat/Stage.js,ragingcat/Stage.js,bluekvirus/Stage.js,mr-beaver/Stage.js,mr-beaver/Stage.js