add fix for travis build problems

kevinnio · kevinnio · commit a7e2ec3d4c3d · 2017-12-31T14:08:58.000-06:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,7 @@
 language: ruby
+sudo: required
+dist: trusty
+group: deprecated-2017Q4
 rvm:
   - 2.1.1
 before_script:
@@ -13,4 +16,3 @@ before_script:
 
 script:
   - "bundle exec rake"
-
