* Moved the exportChart method, previously on BaseCccComponent, to a new base class: ChartComponent.
* Rebased ProtovisComponent and BaseCccCompoonent to ChartComponent.
* ProtovisComponent's can now be exported using cgg.
* Improvements to the exportChart method.
** Fixed intended caching of the export IFrame.
** The window or top.window debug and debugLevel query string parameters are included in the CGG request.
* Added the numeric Dashboards.debug property, that is initialized with the value of the query string parameters debug=true and debugLevel=n.