Test on trusty (#690)

Nyholm · web-flow · commit a384710adf47 · 2017-06-17T11:02:51.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 sudo: false
-
+dist: trusty
 php: 7.0
 
 addons:
