.travis.yml in cucumber-wire-0.0.1 vs .travis.yml in cucumber-wire-1.0.0

@@ -1,10 +1,14 @@
 rvm:
+  - ruby-head
+  - 2.4.0
+  - 2.3.3
   - 2.2
-  - 2.1
-  - 2.0
-  - 1.9.3
-  - jruby-1.7.12
+
+matrix:
+  allow_failures:
+    - rvm: ruby-head
+  fast_finish: true
 
 # whitelist
 branches:
   only:
     - master