* basic builder app runs - you can build a tree of elements making up a interface for roo and gtk.
* listeners are created correctly.
* listeners with gtk prototypes
+* Gtk properties that are enums - now show a combo selector..
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TODO
-* Gtk properties that are enums - should show some kind of selector.
+* order of palete needs fixing.
+* support user functions/properties..
* adding a file does not display on project tree straight awya..
* calculate mouseover for rendered view of Gtk preview.
* create output to JS ...