* Port to Drupal 7
* Introduction of class-based plugin system for Quant
- Quant.inc
- QuantData.inc
- QuantChart.inc (abstract)
--- QuantChartTable.inc (HTML table charts)
--- QuantChartChartAPI.inc (chart.module charts provided by Google Chart API)
* Chart plugins can be defined in hook_quant_charts() (see quant.api.php for more info)