.travis.yml in metric-0.1.1 vs .travis.yml in metric-0.1.2

@@ -1,11 +1,15 @@
 bundler_args: --binstubs
 
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
+  - 1.8.7
   - ree
+
+matrix:
+  allow_failures:
+    - rvm: 1.8.7
+    - rvm: ree
 
 script: "bundle exec rspec spec"
 
 notifications:
   recipients: