.travis.yml in signed_form-0.1.2 vs .travis.yml in signed_form-0.2.0

@@ -1,12 +1,16 @@
 script: bundle exec rspec
 language: ruby
-before_install: gem install bundler
 
 rvm:
   - 1.9.3
   - 2.0.0
 
 env:
   - RAILS_VERSION=3-1-stable
   - RAILS_VERSION=3-2-stable
+  - RAILS_VERSION=4-0-stable
   - RAILS_VERSION=master
+
+matrix:
+  allow_failures:
+    - env: RAILS_VERSION=master