.travis.yml in executrix-1.2.1 vs .travis.yml in executrix-1.2.2

@@ -1,12 +1,18 @@
 language: ruby
+cache: bundler
 bundler_args: --without documentation production
 rvm:
   - 1.9.3
   - 2.0.0
+  - 2.1.0
   - jruby-19mode
-  - rbx-19mode
+  - rbx
+  - ruby-head
+  - jruby-head
 matrix:
   allow_failures:
-    - rvm: rbx-19mode
+    - rvm:
+      - ruby-head
+      - jruby-head
 script:
-  - rake spec
+  - bundle exec rake spec
\ No newline at end of file