Allow ruby-head failure in .travis.yml (#49)

sausman · web-flow · commit f309f0bc3d95 · 2020-10-26T14:38:16.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -27,4 +27,5 @@ matrix:
     - rvm: rbx-3
     - rvm: rbx-4
     - rvm: jruby
+    - rvm: ruby-head
   fast_finish: true
