[gtkmm] Created tag gtkmm-2.17.2

[David King <davidk src gnome org>]

The signed tag 'gtkmm-2.17.2' was created.

Tagger: David King <davidk openismus com>
Date: Mon Jul 20 13:54:00 2009 +0200

    Release 2.17.2

Changes since the last tag 'gtkmm-2.17.1':

Daniel Elstner (1):
      Correct base type check in Container_Class::remove_callback()

Jonathon Jongsma (1):
      add Gdk::Pixbuf::create_for_stream() and create_for_stream_at_scale()

Murray Cumming (4):
      remove_callback(): When just calling the C callback, because the C++
      Fixed the build.
      Increased version, anticipating a new glibmm release.
      Marked the version in the ChangeLog