[docs] [issue15414] os.path.join behavior on Windows (ntpath.join) is unexpected and not well documented

Changes by Dave Sawyer <dsawyer@box.com>: ---------- versions: +Python 3.4, Python 3.5 -Python 2.7, Python 3.2, Python 3.3 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue15414> _______________________________________