.travis.yml in diff_matcher-2.4.0 vs .travis.yml in diff_matcher-2.4.1

@@ -6,6 +6,7 @@
   - 1.9.3
   - rbx
 #  - rbx-19mode
   - jruby
   - ree
-  - ruby-head
+#  - ruby-head
+  - 2.0.0