.travis.yml in signed_form-0.2.0 vs .travis.yml in signed_form-0.5.0

@@ -2,14 +2,18 @@
 language: ruby
 
 rvm:
   - 1.9.3
   - 2.0.0
+  - 2.1.0
+  - 2.2.0
 
 env:
   - RAILS_VERSION=3-1-stable
   - RAILS_VERSION=3-2-stable
   - RAILS_VERSION=4-0-stable
+  - RAILS_VERSION=4-1-stable
+  - RAILS_VERSION=4-2-stable
   - RAILS_VERSION=master
 
 matrix:
   allow_failures:
     - env: RAILS_VERSION=master