.travis.yml in grape-0.9.0 vs .travis.yml in grape-0.10.0

@@ -1,12 +1,11 @@
 language: ruby
 
-cache: bundler
+sudo: false
 
 rvm:
-  - 2.1.2
-  - 2.1.0
+  - 2.1
   - 2.0.0
   - 1.9.3
   - rbx-2.2.10
   - jruby-19mode
   - ruby-head
@@ -14,5 +13,10 @@
 
 matrix:
   allow_failures:
     - rvm: ruby-head
     - rvm: jruby-head
+
+gemfile:
+  - Gemfile
+  - gemfiles/rails_3.gemfile
+  - gemfiles/rails_4.gemfile