restore (un)docking of widgets without reparenting on non-windows systems * octave-dock-widget.cc(constructor): dock widgets features depending on system; (destructor): update comment; (set_title): set title in user defined title bar widget only on windows; (make_window): just set the windows flag when floating on non-windows systems; (make_widget): just set the widget flag when docked on non-windows systems; (change_floating): detect actual state from related flag on non-windows sys.; * main-window.cc(set_window_layout): use correct setting categorie for geometry

--- a/libgui/src/main-window.cc	Fri Oct 18 18:48:08 2013 +0200
+++ b/libgui/src/main-window.cc	Fri Oct 18 20:01:03 2013 +0200
@@ -633,7 +633,7 @@
             widget->make_widget (false); // no docking, just reparent
 
           // restore geometry
-          QVariant val = settings->value (name);
+          QVariant val = settings->value ("DockWidgets/" + name);
           widget->restoreGeometry (val.toByteArray ());
 
           // make widget visible if desired