Replace deprecated Gtk.Stock items
Replace deprecated widgets (GtkVBox, GtkTable) and bump required GTK release to 3.10
Replace deprecated widgets (GtkVBox, GtkHButtonBox, GtkTable) and bump required GTK release to 3.8
Launchpad automatic translations update.
Launchpad automatic translations update.
Mark stock label replacements as translatable
Remove deprecated Gtk.Stock items and Gtk widgets (GtkVBox, GtkTable, GtkHButtonBox) and replace them with their newer counterparts. Also bump Gtk required version to 3.8 and rewamp glade file to work well with last glade release.