Tests basic SQL commands using the psycopg2 driver for Python.

This sample is built for Shippable, a docker based continuous integration and deployment platform. This sample project will fail when built with python 3.2 and pypy since the coverage package does not support python 3.2 and pypy. menegazzo/travispy#20 https://pypi.python.org/pypi/coverage/4.0.3