.travis.yml in parcel-rails-0.9.1 vs .travis.yml in parcel-rails-0.9.2

@@ -1,5 +1,9 @@
 sudo: false
 language: ruby
 rvm:
+  - 2.4.2
   - 2.5.0
 before_install: gem install bundler -v 1.16.1
+install:
+  - bundle install
+  - yarn install