Python 2.6 unittest lacks assertLessEqual etc

Include Biopython 1.65 release date

simple.dnd include

Require at least 3.2.1 for rdflib

Adapting NEWS file for the beta relase

Adding a few more contributors to Biopython 1.62

Fix epydoc paragraph indentation warnings

Fix epydoc warning in Bio/__init__.py

Tell git to ignore the generated MANIFEST file

Bump version to 1.59 for release