Fix for issue #100

I also had issue #100 on Ubuntu 12.04 and 14.04 systems when I upgraded to the latest version of the Python cookbook. 

I tracked it down to `get-pip.py` refusing to install pip on my systems unless the python-setuptools package was installed first. If you get that fixed, then later on in the package it will upgrade setuptools for you.

I have this fix running successfully on my systems now.