Roassal visualisation engine on top of Amber

The Roassal visualisation engine (which is developed in Pharo) is also ported to Amber (the Smalltalk on top of JavaScript running in a webbrowser). You can already test Roassal on top of Amber in your browser: http://pestefo.github.io/roamber Just edit the examples in the workspace, execute (select all and click on do-it) it and see how the visualisation changes.