RF: Putting in place a system to install this on different machines

This will make it (eventually) possible to import this from an ipython session,
or from a python script using "import pRF_analysis", once its been installed
using the standard `python setup.py install`.
For now, not importing config, so the package can be imported.
made some minor changes to the installation version forked by arokem
deleted test.py.  this will be taken care of in /testing/
small edit to execution file
emptied the config file of its particulars