Python Link Wrong (Integration page) and add a description for the onefile.py export option

[Daniel Zoller]

from a user

#!
1) In the section "Python", the "download" link is dead (the link points
to
https://gforge.cs.uni-kassel.de/frs/download.php/46/bibsonomy-client-python.zip
). The Instructions <https://bitbucket.org/bibsonomy/bibsonomy-python>
link within the same subsection is correct, as far as i could tell.


2) The bibsonomy-python project provides a bookmark exporter
("onefile.py"); this is not mentioned on
https://www.bibsonomy.org/help_en/Integration , but it should be. When i
arrived at https://www.bibsonomy.org/help_en/Integration, i simply did a
full-text search for the word "export", and i found the "Bookmark
Exporter" section which refers to a different (Java-based) exporter
project. I didn't initially look any further than that, but if i had, i
would have been disappointed, because none of the occurrences of the
word "export" mention the export functionality of bibsonomy-python