past 0.9
	Made sure userfield.py works with OpenOffice.org 3.x files.
0.9
	Updated to ODF version 1.1
0.8
	Added the ability to load a document.
0.7
	Refactored command-line tool odfuserfied into odf.userfield as a
	library and adapted odfuserfied to use this library.

0.6.1
	TODO: collect changes from svn check-in messages

0.6
	Implemented subobjects.
