Not yet ready for 3.7...Travis fails.... we'll see later when 3.7 is …

…officially released

Signed-off-by: Christian Tremblay <[email protected]>

.travis.yml

@@ -3,7 +3,7 @@ python:
 - '2.7'
 - '3.5'
 - '3.6'
-- '3.7-dev'
+#- '3.7-dev'
 #- "nightly" # currently points to 3.6-dev
 bundler_args: "--retry 3"
 install: