.travis.yml in surface_master-0.2.0 vs .travis.yml in surface_master-0.2.1

@@ -1,8 +1,7 @@
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.3
-  - 2.0.0
+  - 2.2.0
+  - 2.2.3
 before_install:
   - sudo apt-get update
   - sudo apt-get install libportmidi-dev