Test on Python 3.7 instead of 3.7-dev

Author: hugovk

.travis.yml

@@ -3,9 +3,15 @@ python:
   - 2.7
   - 3.5
   - 3.6
-  - 3.7-dev
   - nightly # currently points to 3.8-dev
 
+# Enable 3.7 without globally enabling sudo and dist: xenial for other build jobs
+matrix:
+  include:
+    - python: 3.7
+      dist: xenial
+      sudo: true
+
 addons:
   apt:
     packages:

docs/source/support.rst

@@ -4,7 +4,7 @@ Support
 
 Feel free to try MSS on a system we had not tested, and let report us by creating an `issue <htps://github.com/BoboTiG/python-mss/issues>`_.
 
-GNU/Linux, macOS and Windows: **2.7**, 3.5, **3.6** and 3.7-dev.
+GNU/Linux, macOS and Windows: **2.7**, 3.5, 3.6 and **3.7**.
 
 
 Future