Log Message:
Update to 2.4.1:
- Register GtkFileChooserDialog correctly.
- Fix a number of bugs in the libglade-convert utility.
- Fix some memory leaks in the XML parsing code.
- Handle tooltips on GtkToolItems properly, and get rid of uses of
  the old toolbar API.
- Fix some bugs in setting up ATK relations.
- Various other bug fixes (see ChangeLog).