Merge branch 'master' of ../scipy_paper
Implement proceedings structure.
Remove paper config requirement.
Add submitted papers.
Update example paper.
EDIT: Convert included images to figures.
EDIT: Allen: Fix underlines.
EDIT: Add Allen figure.
EDIT: Arnold: Join abstract paragraphs.
EDIT: Bergstra: fix table.
EDIT: Bao: Add figure.
EDIT: Colbert: Remove extra maths mode.
EDIT: Devarajan: Add images.
EDIT: Devarajan: Fix figures.
EDIT: Overholt: Move figures to correct location.
EDIT: Henderson: Fix abstract paragraph breaks.
EDIT: Overholt: Change images to figures.
EDIT: Ragan-kelley: Fix math markup.
EDIT: Reikeras: Remove reference to SciPy to improve front page.
EDIT: Hack: Better resolution Ariane image.