Move a2dCanvasObject's bbox extension members into a class
Remove {Set,Get}PixelStroke() from a2dLayerInfo and a2dLayers
Allow a2dDragMultiNewTool selection to be restored on redo
The bottom right coordinate of the bounding box must be part of the
Do not indent Doxygen commands more than the documentation text
Fix memory leak on redo of a2dCommand_Select
Add DrawXCross() method to a2dDrawer2D
Improve documentation on normalized font and small text threshold