Adding postgres dependencies

setup.py

@@ -28,10 +28,12 @@ setup(
         'markdown>=2.5.2',
         'mysql-python>=1.2.5',
         'pandas>=0.15.2',
+        'psycopg2>=2.6',
         'pygments>=2.0.1',
         'pysmbclient>=0.1.3',
         'pyhive>=0.1.3',
         'pyhs2>=0.6.0',
+        'pysqlite>=2.6.3',
         'python-dateutil>=2.3',
         'requests>=2.5.1',
         'setproctitle>=1.1.8',