.travis.yml in paraduct-0.0.3.beta2 vs .travis.yml in paraduct-0.0.3

@@ -2,11 +2,13 @@
 rvm:
 - 1.9
 - 2.0
 - 2.1
 - 2.2
+- 2.3.0
 - ruby-head
+cache: bundler
 bundler_args: --jobs=2
 before_script:
 - export CODECLIMATE_REPO_TOKEN=bfa8a7ca9d8e18e9cad7593885aa11477a3c4b6b53f70f6be8ce60f470b48770
 - export VERBOSE=1
 - export COVERAGE=true
@@ -19,7 +21,7 @@
   email: false
   slack:
     secure: Va597DRHkMl8/mcoquZ0cNcR0GbJ+kbrXDMDnkiF8S7+xtsAXG3iQB9/Z3zOjF73wXmBjYWuawhcHiKD15atS1UN3xXCfguS26eANsnG+NsU8VXzY5wRW7G+Y4YpkACh4j2YLWlFqgffHgkJ+hM/OGtwnJPA6pSPXoJ7DS48lEs=
 matrix:
   allow_failures:
-  - rvm: 2.2
   - rvm: ruby-head
+sudo: false