.travis.yml in m-1.3.3 vs .travis.yml in m-1.3.4

@@ -1,6 +1,10 @@
 rvm:
-  - 1.9.3
   - 2.0.0
-branches:
-  only:
-    - master
+  - 2.1.0
+  - 2.2.0
+install:
+  - bundle install
+  - bundle --gemfile=gemfiles/minitest5.gemfile
+  - bundle --gemfile=gemfiles/minitest4.gemfile
+script:
+  - bundle exec rake tests