Update psycopg2

Author: brien-givens

setup.py

@@ -8,7 +8,7 @@
      , url='https://postgres-py.readthedocs.org'
      , version='2.2.1-dev'
      , packages=find_packages()
-     , install_requires=['psycopg2 >= 2.5.0']
+     , install_requires=['psycopg2-binary >= 2.7.5']
      , classifiers=[
          'Development Status :: 5 - Production/Stable',
          'Intended Audience :: Developers',