.travis.yml in rib-1.1.0 vs .travis.yml in rib-1.1.1

@@ -1,8 +1,11 @@
 before_install: 'git submodule update --init'
 script: 'ruby -r bundler/setup -S rake test'
 
+env:
+  - 'RBXOPT=-X19'
+
 rvm:
   - 1.9.2
   - 1.9.3
-  - rbx-19mode
-  - jruby-19mode
+  - rbx-head
+  - jruby-head