Limaki.View.IWebBrowserBackend: track api changes
Limaki.View.XwtBackend.XwtDrawingUtils: use Screen.ScaleFactor
Xwt.Gtk: bug with TextLayout.Trimming == WordElipsis
Xwt.Gtk: Testcase for TextLayout.Trimming == WordElipsis
Xwt.Testing.DrawingTestsBase: init Toolkit.Engine in TestFixtureSetUp
Xwt.Gtk: bug with TextLayout.Trimming == WordElipsis
Xwt.Gtk: Testcase for TextLayout.Trimming == WordElipsis
Xwt.Gtk.GetScaleFactor(screen): same value like in gtk