here they finally are...my changes for the new doc toolchain, as described
and discussed on the SCons dev mailing list.
In the last two additional commits, I added proper documentation and tests
for the Docbook Tool.
Then I had to patch setup.py and the MANIFEST stuff a little, such that the
Docbook stylesheets would get installed and packaged where needed.
I really hope I didn't break anything last minute.
The full "bootstrap.py" process and "runtest.py -a" run fine on my side.
For testing, you can also still update the "new_doc_toolchain" branch from my