Fixes too strict dateutil requirement (#64)

LKaemmerling · web-flow · commit 47cdeb7c63f7 · 2019-10-01T14:24:45.000+02:00
diff --git a/setup.py b/setup.py
@@ -13,7 +13,7 @@
 
 requirements = [
     "future==0.17.1",
-    "python-dateutil==2.7.5",
+    "python-dateutil>=2.7.5,<2.9",
     "requests>=2.20,<2.23"
 ]
 
