Merge pull request #6 from jianaijun/master

typo
The alpha slipped out as 3.0.0, removed ``ZODB-4.0.0dev.tar.gz`` to reduce damage
update CHANGES with "Fixed a bug in ``widget.py`` ``def wrapCSSClass``"
extend underline
Preparing release 3.0.1
Back to development: 3.0.2