CLI - Updates to setup.py to switch to distutils and the inclusion

of a requirements.pip file for installing into a virtualenv with pip.
Fixes incorrect inclusion of locale files in setup.py.

This build is currently available and can be installed into a virtualenv via pip - https://pypi.python.org/pypi/katello-cli/1.3

There are some updates to documentation, description, etc. that we can do over time, but this is a good first, working start.