Merge pull request #90 from miguelgf/master

Add Python 3.8 to Travis matrix

Author: p1c2u

.travis.yml

@@ -9,6 +9,7 @@ matrix:
   - python: 3.5
   - python: 3.6
   - python: 3.7
+  - python: 3.8
     dist: xenial
     sudo: true
   - python: nightly