It's trivial to use a stock icon with the given name in wxGTK with libnotify,
so provide a way to do it. However this is not as simple as that in other
implementations (notably Windows), so make it private to this port for now.
In the future we should try to support arbitrary wxIcons as well as extend
wxIconLocation to support FreeDesktop stock icon names.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72250 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use libnotify -- if detected by configure -- to provide native notifications
in wxGTK. Our API maps to libnotify one in rather straightforward way, we
might consider extending it to cover more of libnotify functionality
(categories, user-defined icons and, especially, actions) later.
Also update the dialogs sample to show another kind of notification and the
documentation to clarify the behaviour of various methods.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72218 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775