.travis.yml in rack-dev-mark-0.0.2 vs .travis.yml in rack-dev-mark-0.0.3

@@ -5,9 +5,12 @@
   - 2.0.0
   - 2.1.0
 gemfile:
   - gemfiles/gemfile
   - gemfiles/rack.1.4.x.gemfile
+  - gemfiles/rack.1.3.x.gemfile
+  - gemfiles/rack.1.2.x.gemfile
+  - gemfiles/rack.1.1.x.gemfile
 
 script: "bundle exec rake spec"
 
 branches:
   only: