I tried this out once. At the time the CSS wasn't namespaced, and used fairly common class names, so it interfered with other parts of the project. Not sure if it has been fixed since.
The library is now namespaced. data_graphic is now MG.data_graphic, convert_dates is now MG.convert.date, clone is now MG.clone, button_layout is now MG.button_layout and data_table is now MG.data_table. We added a new convenience function called MG.convert.number."
Eventually went pure D3.