Make QObject::property()/setProperty() accessible from D. It is specified to be private in the type system back from QtJambi because the functions take a char pointer instead of a QString, but the conversion functions were missing so far.

#! /bin/bash

dmd main.d graphwidget.d node.d edge.d -L-lqtdgui -L-lqtdcore -L-lcpp_core -L-lcpp_gui -L-lQtGui -L-lQtCore -ofelasticnodes