* Update module_utils.six to latest
We've been held back on the version of six we could use on the module
side to 1.4.x because of python-2.4 compatibility. Now that our minimum
is Python-2.6, we can update to the latest version of six in
module_utils and get rid of the second copy in lib/ansible/compat.
* Fixes to the controller text model
* Change command line args to text type
* Make display replace undecodable bytes with replacement chars. This
is only a problem on pyhton3 where surrogates can enter into the msg
but sys.stdout doesn't know how to handle them.
* Remove a deprecated playbook syntax in unicode.yml
* Fix up run_cmd to change its parameters to byte string at appropriate times.