Remove artefacts from pointer.png.
Replace several PNGs with images without artefacts (used FreeSerif as
the font).
Stopped scaling images up in MainWindow::createColorToolButtonIcon.
Change-Id: I7adf2deea73b89c631d39d575804e8d3f58c9fe1
Reviewed-by: Geir Vattekar <geir.vattekar@digia.com>
Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.
Also grouped all widgets related examples under widgets.
Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>