Fix issue in which properties may be set on non-existent node.

Changed BaseGraphic to GraphicBase. Fixes #2531630

First pass at cleaning up memory leaks in graphics/charts.

Fixes #2531465

Fixes #2531359

API Doc fixes for charts and graphics.

API Doc changes to Graphics and Charts. Fixes #2528390

API Doc fixes for Graphics and Charts.

Updated fill and stroke documentation in user guide and api docs. Cleaned up typos and formatting in user guide and api docs. No mins.

Graphic api doc update.

Add vml specific graphic unit tests. Change graphic doc attributes to config.

Graphics - changed Graphic.getShape to Graphic.addShape as it better describes the function.

Graphics API Doc updates.

Add ability to create custom shapes.

Fixed issues with linear gradient rotations.

Fixed opacity issue with vml fills. Replaced document references.

Check to ensure element exists before setting values.

Charts uses grapics api.

Added pieslice class.

Removed unused variables. Fixed issue with canvas batch method.

Addressed bug in which attributes were not being properly set in BaseGraphic. Fixed VMLShape issue in which fills were not being updated properly. Fixed VMLShape translateX/translateY issue. Added id, autoSize, resizeDown, x, y, visible and autoDraw attributes to Graphic. Fixed issues with batch operations. Fixed issue in which bounds were not calculated correctly for svg shapes. Circles accept width and height in addition to radius. The last value set is used. Canvas RGB conversion uses Y.Color now.

Added BaseGraphic as Base for all graphic classes. Converted Graphic classes to use getter/setter api.

Updates to incorporate with charts.

Updated comments. Cleaned up code a bit.

Cleaned up some warnings.

Graphics source files.