.travis.yml in proxmox-0.0.3 vs .travis.yml in proxmox-0.0.4

@@ -1,5 +1,7 @@
 language: ruby
+cache: bundler
+bundler_args: --without developpement
 rvm:
-  - 1.9.3
   - 2.0.0
+  - 2.1.0
 script: bundle exec rspec spec