.travis.yml in slack-ruby-client-0.1.0 vs .travis.yml in slack-ruby-client-0.2.0

@@ -1,6 +1,17 @@
 rvm:
   - 2.2
+  - 2.1
+  - 2.0.0
+  - rbx-2.2.10
+  - jruby-19mode
+  - ruby-head
+  - jruby-head
+
+matrix:
+  allow_failures:
+    - rvm: ruby-head
+    - rvm: jruby-head
 
 git:
   submodules: false