.travis.yml in madvertise-logging-0.6.0 vs .travis.yml in madvertise-logging-0.7.0

@@ -1,5 +1,6 @@
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
+  - 1.9.2
+  - ruby-head
+  - jruby-head