* Initial Port to Drupal 7

* If there is no default chart provider or chart type select, now uses the first one enabled by default.

API Changes:
* The new hook_chart_types() set new chart types (like "Vertical Bar 3D")
* The '#types' on hook_charts_info() now only list the chart type code.

* Since the include file is done before calling the render function, it doesnt need to be on the .module file

* Some modifications on hook_charts_info. now it returns all info without the need of an operator

* hook_chartsapi renamed to hook_charts_render

* hook_chartsinfo renamed to hook_charts_info

* Some Drupal code compliance fixes

* New chart types for Open Flash Chart

* Open Flash Chart plugin implementation

* correct module name on hook_chatsinfo()

New features:
* hook_chartsapi() first implementation

* First implementation of Open Flash Chart