have oshift CLI tool installed with setuptools as an entry point
remove base64 because it is never used
refactor app_action to support calls that *only* have optional parameters
fix tests to no longer call response dicts
move general functions out to utils.py
fix spelling
add option to initialize API with a token instead of username/password

Also makes auth a property accessible with _auth
remove extraneous printed hyphens
Merge pull request #13 from ryansb/addTokenAuth

Enable token auth (follow-on to #12)