2.7.3:

Gtk:
* FileChooser: Added get/set_do_overwrite_confirmation().
* TreeRowReference: Added get_model().
* TreeView: Added const versions of get_path_at_pos(), 
  get_cell_area(), get_background_area(), get_visible_rect(), 
  widget_to_tree_coords(), tree_to_widget_coords().
  Added get_visible_range().
* TreeView::Column: Added queue_resize().
Gdk:
* PixbufLoader:create_with_type(): Really return the 
  created GdkPixbufLoader.
Win32 build:
* Provide an extra hint to work around a DLL export/import bug
  with MSVC++ and TreeViewColumn (Ishmal)