added first shot of dealing with all sorts of documents
worked a bit on extracting all the information from the vorlagen page, including attachment html body and attachment links.
TODO is to actually retrieve the attachments in PDF form and to store them. This needs to be done in this module, too as we only have temporary links.
Merge branch 'odhac2013' of github.com:mrtopf/pyallris into odhac2013