Log Message:
Changes 2.2.10:

* Build:
  - SUN Forte C++ (see README.SUN):
    Now builds. This is probably the first time since
    gtkmm 2.0.x. There are still some "anachronism"
    warnings, which someone might like to fix with a
    patch.
  - gcc++ 3.4 (cvs): Lots of issues fixed, though you
    might see an internal compiler error.
* Documentation:
  - Book: Mention CellRenderer's "editable" property.

Changes 2.2.9:

* Build:
  - Removed DISABLE_DEPRECATED macros so that gtkmm 2.2
  can build with GTK+ 2.3.x. I didn't release this previously
  because previous versions of GTK+ 2.3.x were broken with
  gtkmm, but it's OK now.
  - Removed unnecessary namespace qualification to fix build
  with the Intel compiler.
* Glib::ObjectBase: The default constructor, never before used,
  now generates a custom GType, for use when creating new
  implementations of Glib::Interfaces - for instance, see the
  new custom tree model example in gtkmm.
* examples: Added treecustommodel example, though it's much
  better in gtkmm 2.4.
* documentation:
  - Corrected name and install location of devhelp file.
  - Fixed some documentation that mentinod freeing C objects.
  - Added docs/internals/gtk_patches.txt with URLs of some
    patches/bugs that were needed to underlying libraries,
    as a clue for future developers.
* spec file: Added devhelp file.