Round out __future__ imports

Just for kicks.

Author: chadwhitacre

postgres/__init__.py

@@ -148,7 +148,7 @@
 .. _SQL injection: http://en.wikipedia.org/wiki/SQL_injection
 
 """
-from __future__ import print_function, unicode_literals
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 import sys
 try:                    # Python 2

postgres/context_managers.py

@@ -1,4 +1,4 @@
-from __future__ import print_function, unicode_literals
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 class CursorContextManager(object):

postgres/cursors.py

@@ -5,7 +5,7 @@
 and :py:meth:`all`.
 
 """
-from __future__ import print_function, unicode_literals
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 from inspect import isclass
 

postgres/orm.py

@@ -169,7 +169,7 @@
 --------------------
 
 """
-from __future__ import print_function, unicode_literals
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 # Exceptions

setup.py

@@ -1,3 +1,5 @@
+from __future__ import absolute_import, division, print_function, unicode_literals
+
 from setuptools import setup, find_packages
 
 setup( name='postgres'

tests.py

@@ -1,4 +1,4 @@
-from __future__ import print_function, unicode_literals
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 import os
 from collections import namedtuple