[Pharo-project] New widget

Hello everyone, I've done a new Morphic widget, that allow to easily switch from a categorized view to a "all elements" view (quite hard to explain, let me give you an example ^^) Gofer new squeaksource: 'SwitchableTreeWidget'; package: 'SwitchableTreeWidget'; load. SwitchableCategoriesTreeExample new openInWorld. If you click on the button or just double click on the tree, you will switch the view :) I wrote that widget to integrate it in a new browser (and if I succeed, to create a new Glamour widget) Thanks in for your feedback :) Ben