- readability for the xml
test single select
excercise single select a bit
cleanup, make single select work
Merge branch 'master' of github.com:leifj/pyFF

Conflicts:
	src/pyff/mdrepo.py
documentation and minor cleanup
document sphinx version bump
cleanup, make single select work
cleanup, make single select work
pep8
- turn ValueError into custom exception
- next_jobs wasn't being retained across threads making retries fail
- fix caching
- remove unnecessary logging
- fix bug in template
fix stats
distiguish up from down
another ambiguous 'if not' I got from refactoring