travis: run in docker containers

parkr · parkr · commit d009dec4eccd · 2015-08-16T13:42:24.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -4,6 +4,7 @@ rvm:
 - 2.2
 - 2.1
 - 2.0
+sudo: false
 notifications:
   email: false
 branches:
