.travis.yml in mutant-0.2.9 vs .travis.yml in mutant-0.2.11

@@ -2,14 +2,17 @@
 script: 'bundle exec rake spec'
 rvm:
   - 1.8.7
   - 1.9.2
   - 1.9.3
+  - ruby-head
   - rbx-19mode
 matrix:
   allow_failures:
     # No mutators for 1.8 specifc AST nodes
     - rvm: rbx-18mode  
     - rvm: 1.8.7
+    # We'll see what happens
+    - rvm: ruby-head
 notifications:
   email:
     - [e-mail]