Test against Ruby 2.4 (#184)

jekyllbot · DirtyF · commit 3a59f5471eeb · 2018-01-27T20:46:31.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 language: ruby
 cache: bundler
 sudo: false
-rvm: 2.2
+rvm: 2.4
 
 install: script/bootstrap
 script: script/cibuild
