[Vala] Should goocanvas strip "goo_canvas_" instead of "goo_"?

[Just Fill Bugs <mozbugbox yahoo com au>]

As can be see in
  <http://valadoc.org/references/goocanvas/0.11.5/index.htm>
there are a lot of redundency when only goo_ prefix been stripped. 
Should "goo_canvas_" been strip instead? Maybe with the exception of the 
"Canvas" class.

Besides, the CanvasPath, CanvasPolyline... naming didn't really make senese.

Goo

    Interfaces
        CanvasItem
        CanvasItemModel
    Classes
        CairoMatrix
        CairoPattern
        Canvas
        CanvasEllipse
        CanvasEllipseModel
        CanvasGrid
        CanvasGridModel
        CanvasGroup
        CanvasGroupModel
        CanvasImage
        CanvasImageModel
        CanvasItemModelSimple
        CanvasItemSimple
        CanvasLineDash
        CanvasPath
        CanvasPathModel
        CanvasPoints
        CanvasPolyline
        CanvasPolylineArrowData
        CanvasPolylineModel
        CanvasRect
        CanvasRectModel
        CanvasStyle
        CanvasTable
        CanvasTableModel
        CanvasText
        CanvasTextModel
        CanvasWidget
    Structs
        CanvasBounds
        CanvasItemSimpleData
        CanvasPathCommand
        CanvasPathCommandArc
        CanvasPathCommandCurve
        CanvasPathCommandSimple
        CanvasStyleProperty
    Enums
        CairoAntialias
        CairoFillRule
        CairoHintMetrics
        CairoLineCap
        CairoLineJoin
        CairoOperator
        CanvasAnimateType
        CanvasItemVisibility
        CanvasPathCommandType
        CanvasPointerEvents