.travis.yml in grape-app-0.3.17 vs .travis.yml in grape-app-0.4.0

@@ -1,7 +1,6 @@
 language: ruby
+sudo: false
 rvm:
-  - 1.9.3
-  - 2.0.0
-  - 2.1.4
-  - 2.2.1
-  - jruby-19mode
+  - 2.3.3
+  - 2.2.6
+  - 2.4.0