dateutil dep wrong in bdist deps

setup.cfg

@@ -42,7 +42,7 @@ upload-dir = docs/.build/html
 requires = uuid
            importlib
            multiprocessing == 2.6.2.1
-           python-dateutil <= 1.5.0
+           python-dateutil >= 1.5.0
            anyjson >= 0.3.1
            kombu >= 1.2.1
            pyparsing >= 1.5.0