Copy shlex from cpython repo

Here are the version messages from cpython's Mercurial repo
view Lib/shlex.py @ 93780:ce72e3c45884

Merge 2.7.9 release branch
author 	Benjamin Peterson <benjamin@python.org>
date 	Sun, 07 Dec 2014 14:25:59 -0500 (2 days ago)
parents 	e54ee8d2c16b
children