Python 3.6 is working on Travis so require it (#4039)

dstufft · web-flow · commit 22f2e01be5cd · 2016-10-29T15:38:12.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -33,7 +33,6 @@ matrix:
       env: TOXENV=py35 VENDOR=no WHEELS=yes
 
   allow_failures:
-    - python: "3.6-dev"
     - python: nightly
 
 
