Moved reset_nesting_tags and nestable_tags from BeautifulSoup to the HTML builder.
Moved reset_nesting_tags and nestable_tags from BeautifulSoup to the HTML builder.

h4ck3rm1k3/BeautifulSoup4,snarfed/beautifulsoup,h4ck3rm1k3/BeautifulSoup4,h4ck3rm1k3/BeautifulSoup4,snarfed/beautifulsoup