I have updated to version 1.2.8 which :
- includes the fixes mentioned above (remove debian hack, and using debbie script)
- added handlers for pygtkeditor, geany, leafpad
- added mime type integration for several file types... this will show icons now for doc, xls, csv, cpp, h, cs, py, pdb, and maybe a few others.

If you have problems with cpp, c, or .h files it may be due to a mime package in /usr/share/mime/packages/cpp.xml which is installed by pygtkeditor... delete that as root then run as root :
update-mime-database /usr/share/mime (or just reinstall dbus-switchboard)