.travis.yml in razorpay-1.0.3 vs .travis.yml in razorpay-1.1.0

@@ -1,5 +1,7 @@
 language: ruby # Auto-detected as well
 rvm:
   - "1.9.3"
   - "2.0.0"
-  - "2.1.1"
+  - "2.1.8"
+  - "2.2.4"
+  - "2.3.0"