Inform user about current keywordset in kwdemo
The kwdemo --default output now looks roughly like this:
configuration using default cvs keywordset
[extensions]
keyword =
[keyword]
demo.txt =
[keywordset] * section added with this change
svn = False
[keywordmaps]
...
# $Id$
include tests/test-keyword tests/test-keyword.out
include MANIFEST.in