Migrate to xenial in travis

cherifGsoul · chasenlehara · commit cf00ac799d7c · 2019-06-19T15:30:52.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: node_js
 node_js: node
-before_install:
-  - "export DISPLAY=:99.0"
-  - "sh -e /etc/init.d/xvfb start"
+dist: xenial
+services:
+  - xvfb
