HTML5 elements + BeautifulSoup

[pamela]

I found peculiar results when using BeautifulSoup to parse an HTML5
page, and discovered I could fix that by adding the HTML5 tags to the
source - in my case, I added <section> and <header> to nestable block
elements section to fix it, but there are a number of new tags that
should be added besides those: http://www.w3schools.com/html5/html5_new_elements.asp

Thanks for the lib! (And ignore this message if this is already fixed
in a newer version)