[docs] [issue16774] Additional recipes for itertools docs

Changes by Ezio Melotti <ezio.melotti@gmail.com>: ---------- assignee: docs@python -> rhettinger nosy: +ezio.melotti, rhettinger stage: -> patch review type: -> enhancement versions: +Python 2.7, Python 3.2, Python 3.3 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue16774> _______________________________________