cocoon2 documentation fixes

[Bernhard Huber <bh...@i-one.at>]

hi,
as i was testing the cocoon2 webapplication being part of 
the cocoon2 distribution. I found some problems, the fixes
are attached in the zip file:
1) documentation\svg\*.xml - do not include the specified gif-images
properly, i replaced the image by svg-rects looking quit similiar
to the image.
2) nearly all html pages have an tag content, the xsl for wml for
examples filters this tag, the html-xsl does not.

i hope the fixes makes cocoon2 sample webapplication a bit nicer.
bye