pygtk-2.15.1 20-Jun-2009
    - Rename gtk.Statusbar.remove() to gtk.Statusbar.remove_message (Paul)
    - Allow pango.Context creation (Paul, #550855)
    - Make gtk.gdk.Pixbuf.add_alpha accept integers, retaining backward
      compatibility accepting also chars (Paul, #586094)
    - Protect window obj from GC in gtk.window_get_toplevels (Gustavo, #574259)
    - Plug huge number of memory leaks in Pango wrappers (Paul)
    - Add gtk.gdk.WINDOWING constant (Paul, #555112)
    - Wrap gdk_pixbuf_apply_embedded_orientation (Chris Wilson)
    - Modernize constructors of seven more types (Paul)
    - Don't free a string we don't own (Paul, #585458)
    - Some docs tweaking (Gian)