Bug#699275: sextractor: Documentation lacks source code, and contains non-free images

[Ole Streicher]

tags 699275 + pending
thanks

I will remove the PDF documentation from the source. For
Guide2source_extractor.pdf, this is obvious. If sextractor.pdf (and/or a
HTML documentation, as by #399759) is needed, it can better be built as
a separate package from the source code in
<http://www.astromatic.net/wsvn/public/listing.php?repname=public+documents.sextractor_doc&path=%2F&>.