.travis.yml in safe_yaml-0.7.0 vs .travis.yml in safe_yaml-0.7.1

@@ -1,9 +1,14 @@
-language: ruby
+language:
+  ruby
+
 before_install:
-  - gem install bundler
-script: "bundle exec rake spec"
+  gem install bundler
+
+script:
+  bundle exec rake spec
+
 rvm:
   - ruby-head
   - 2.0.0
   - 1.9.3
   - 1.9.2
@@ -12,14 +17,29 @@
   - rbx-18mode
   - jruby-head
   - jruby-19mode
   - jruby-18mode
   - ree
+
+env:
+  - YAMLER=syck
+  - YAMLER=psych
+
 matrix:
   allow_failures:
     - rvm: ruby-head
     - rvm: rbx-19mode
     - rvm: rbx-18mode
     - rvm: jruby-head
     - rvm: jruby-19mode
     - rvm: jruby-18mode
-    - rvm: ree
\ No newline at end of file
+    - rvm: ree
+
+  exclude:
+    - rvm: 1.8.7
+      env: YAMLER=psych
+    - rvm: jruby-head
+      env: YAMLER=syck
+    - rvm: jruby-19mode
+      env: YAMLER=syck
+    - rvm: jruby-18mode
+      env: YAMLER=syck