Updated tests/conftest.py: add fixed IPv4 127.0.0.1 and specify /tmp as socket directory (for Ubuntu 12.04 LTS default config)
Updated tests/conftest.py: PEP8 for 'tox -e pep8'
Merge pull request #263 from westurner/postgresql_test_server_host_and_var

Updated tests/conftest.py: add fixed IPv4 127.0.0.1 and specify /tmp as ...