.travis.yml in lita-tweet-0.3.0 vs .travis.yml in lita-tweet-0.4.0

@@ -1,8 +1,7 @@
 language: ruby
 rvm:
   - 2.3.1
-script: bundle exec rake
-before_install:
-  - gem update --system
+script:
+  - bin/rake
 services:
   - redis-server