Xwt.Gtk.CairoContextBackendHandler: fix bug in DrawTextLayout: only one line is Drawn if Ellipsize !=none
Limaki.Drawing: usage of Xwt.TextLayout.GetSize() on Gtk must be with TextTrimming.Word (WordElipsis makes only one line)
Xwt.Gtk: use dllmap in Xwt.Gtk.dll.config to map libwebkitgtk.so
Limaki.View.XwtBackend.DrawingUtils: fix TextTrimming again
Limaki.View.XwtBackend & GtkBackend: try to get WebView running