multiple changes

added Justin's __init__.py to pynfg
fixed typo in test_script.py
updated iq_iterated.py
added Justin's setup.py file to PyNFG
added stackelberg.py example to bin
added iq.py to pgtsolutions.intelligence
updated iq_iterated.py in pgtsolutions.intelligence
Created pure functionality for DecisionNode.perturbCPT()
Changes to iq_MC and iq_MH to test convergence of the algorithms
Implemented Justin's perturbpure function for perturbCPT
Simplifying imports, setting up autodocs, working on iq_iterated.py
new auto-docs
getting rid of clutter in /bin