Reuse the database in tests by default

pytest.ini

@@ -1,2 +1,9 @@
 [pytest]
 DJANGO_SETTINGS_MODULE=sigi.settings.test
+
+# REUSING DATABASE BY DEFAULT (as a performance optimization)
+# http://pytest-django.readthedocs.org/en/latest/database.html#example-work-flow-with-reuse-db-and-create-db
+#
+# Run "py.test --create-db" if you need to recreate the database
+#
+addopts = --reuse-db