Add additional travis directives

jpcaparas · jpcaparas · commit 876ab8b4fa81 · 2017-05-31T17:48:02.000+12:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,11 @@
-# Reference: https://docs.travis-ci.com/user/customizing-the-build
-
 sudo: required
 
+language: generic
+
+dist: trusty
+
+os: linux
+
 services:
   - docker
 
