.travis.yml in dry-web-roda-0.4.0 vs .travis.yml in dry-web-roda-0.5.0

@@ -8,18 +8,15 @@
   - 2.1
   - 2.2
   - 2.3.0
   - rbx
   - jruby-9000
-  - ruby-head
-  - jruby-head
 env:
   global:
     - JRUBY_OPTS='--dev -J-Xmx1024M'
 matrix:
   allow_failures:
-    - rvm: ruby-head
-    - rvm: jruby-head
+    - rvm: rbx
 notifications:
   email: false
   webhooks:
     urls:
       - https://webhooks.gitter.im/e/19098b4253a72c9796db