travis.yml in spree_cmd-3.4.2

- old
+ new

@@ -8,9 +8,11 @@
   - DB=mysql
 
 gemfile:
   - gemfiles/spree_3_1.gemfile
   - gemfiles/spree_3_2.gemfile
+  - gemfiles/spree_3_3.gemfile
+  - gemfiles/spree_3_4.gemfile
   - gemfiles/spree_master.gemfile
 
 script:
   - bundle exec rake test_app
   - bundle exec rake spec