Revert "misc: update for pytest 3.3, pytest-catchlog is no longer required"

pytest 3.4 restored previous behaviour of having only one root logger
handler.

This reverts commit 9dd347f926.

tests_multitenant/test_request_context_filter.py

@@ -7,7 +7,7 @@ from django.contrib.auth.models import User
 
 def test_request_context_filter(caplog, settings, tenants, client):
     root_logger = logging.getLogger()
-    assert len(root_logger.handlers) == 2
+    assert len(root_logger.handlers) == 1
     root_logger.handlers[0].addFilter(RequestContextFilter())
     for tenant in tenants:
         with tenant_context(tenant):

tox.ini

@@ -27,7 +27,7 @@ setenv =
 	fast: NOMIGRATIONS=--nomigrations
 deps:
 	django18: django>=1.8,<1.9
-	pytest>=3.3.0,<3.4
+	pytest
 	pytest-cov
 	pytest-django
 	pytest-mock