.travis.yml in bagit-0.3.2 vs .travis.yml in bagit-0.3.4

@@ -1,8 +1,6 @@
 rvm:
-  - "1.9.3"
-  - "1.9.2"
-  - "1.8.7"
-
+ - 2.3
+ - 2.2
 branches:
-  only:
+ only:
     - master