Merge branch 'mswdc-draw-point-checkbox' of https://github.com/MaartenBent/wxWidgets

Draw the same shape in wxDC::DrawCheckMark() under all platforms and
provide wxRenderer::DrawCheckMark() for drawing the platform-specific
shape.

Also fix wxGCDC::DrawPoint() to use the default one point wide pen.

See https://github.com/wxWidgets/wxWidgets/pull/1471

docs/changes.txt

@@ -70,6 +70,9 @@ Changes in behaviour not resulting in compilation errors
   return to the previous behaviour, you need to explicitly create controls of
   smaller size.
 
+- wxDC::DrawCheckMark() draws the same shape under all platforms now, use the
+  new wxRendererNative::DrawCheckMark() to draw MSW-specific themed check mark.
+
 
 Changes in behaviour which may result in build errors
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