.travis.yml in jekyll-gist-1.3.4 vs .travis.yml in jekyll-gist-1.3.5

@@ -1,13 +1,25 @@
 language: ruby
 script : script/cibuild
-rvm:
-- 2.2
-- 2.1
-- 2.0
-- 1.9.3
 sudo: false
 notifications:
   email: false
 branches:
   only:
     - master
+
+rvm:
+  - 2.2
+  - 2.1
+  - 2.0
+env:
+  - ""
+  - JEKYLL_VERSION=3.0.0.beta8
+  - JEKYLL_VERSION=2.0
+matrix:
+  include:
+    - # GitHub Pages
+      rvm: 2.1.1
+      env: GH_PAGES=true
+    - # Ruby 1.9
+      rvm: 1.9
+      env: JEKYLL_VERSION=2.0