Update setup.cfg with cargo-culted stuff

Guido van Rossum · Guido van Rossum · commit 74ca9bdcc3da · 2016-11-15T09:20:16.000-08:00
diff --git a/setup.cfg b/setup.cfg
@@ -19,3 +19,14 @@ parallel = true
 
 [coverage:report]
 show_missing = true
+
+[wheel]
+universal = true
+
+[bdist_wheel]
+universal = true
+
+[metadata]
+requires-dist =
+    typed-ast >= 0.6.1; sys_platform != 'win32'
+    typing >= 3.5.2; python_version < "3.5"
