.travis.yml in hyperdrive-0.0.6 vs .travis.yml in hyperdrive-0.0.7

- old
+ new

@@ -1,14 +1,11 @@
 language: ruby
+cache: bundler
 rvm:
-- 2.1.1
-- 1.9.3
-- jruby-head
-- rbx-2.1.1
-matrix:
-  allow_failures:
-    - rvm: jruby-head
-    - rvm: rbx-2.1.1
+  - 2.1.1
+  - 1.9.3
+  - jruby-head
+  - rbx
 env:
   global:
     secure: Tl3oBsBZRI5bMrtNH5mtTDvSTlTxNbsKaAnQ7KQ2KMyiH/eHolOSIbUYB9NB3GRMC6XSyFShRCaYPA/ET36HI+Jw3PFT/XADdiOdFqlk6VyJEUPznNQ1nlp8AsyNn+IexZXIl8DdqmZxGHlY6YKDbQV/U1v+FeW8X5j3TLN1mcw=
 before_install: gem install bundler