.travis.yml in secondbase-2.1.3 vs .travis.yml in secondbase-2.1.4

@@ -6,9 +6,10 @@
 gemfile:
   - gemfiles/rails40.gemfile
   - gemfiles/rails41.gemfile
   - gemfiles/rails42.gemfile
   - gemfiles/rails50.gemfile
+  - gemfiles/rails51.gemfile
 install:
   - gem install bundler
   - bundle --version
   - bundle install
 script: