.travis.yml in jekyll-opal-0.1.0 vs .travis.yml in jekyll-opal-0.2.0

@@ -1,8 +1,22 @@
 language: ruby
 script : script/cibuild
+sudo: false
+cache: bundler
 rvm:
+- 2.2
 - 2.1
 - 2.0
-- 1.9.3
 notifications:
   email: false
+branches:
+  only:
+  - master
+
+matrix:
+  include:
+    -
+      rvm: 1.9
+      env: JEKYLL_VERSION=2.0
+env:
+  - JEKYLL_VERSION=3.0
+  - JEKYLL_VERSION=2.0