.travis.yml in to_factory-0.2.1 vs .travis.yml in to_factory-2.0.0

@@ -1,17 +1,10 @@
 language: ruby
 rvm:
-  - 2.2.0
-  - 2.1.5
-  - 2.1.4
-  - 2.1.3
-  - 2.1.2
-  - 2.1.1
-  - 2.1.0
+  - 2.2.3
+  - 2.1.7
   - 2.0.0
   - 1.9.3
-  - 1.9.2
-  - 1.8.7
 
 script: "./bin/ci"
 
 branches:
   only: