Add Python 2.7 Quick Reference.
Add Python 2.7 Quick Reference.

kialio/gsfcpyboot,saudijack/unfpyboot,kialio/gsfcpyboot,PythonBootCampIAG-USP/NASA_PBC2015,saudijack/unfpyboot,PythonBootCampIAG-USP/NASA_PBC2015,kialio/gsfcpyboot,PythonBootCampIAG-USP/NASA_PBC2015