.travis.yml in cat_tree-0.0.2 vs .travis.yml in cat_tree-1.0.0

@@ -1,12 +1,17 @@
 language: ruby
+before_install:
+  - gem install bundler
 before_script:
   - mysql -e 'create database cat_tree_test;'
+  - bundle update
   - "bundle exec ruby spec/prepare.rb"
 rvm:
-  - 1.9.3
   - 2.0.0
-  - 2.1.2
+  - 2.1.8
+  - 2.2.4
+  - 2.3.0
+  - ruby-head
 gemfile:
   - gemfiles/rails3.gemfile
   - gemfiles/rails40.gemfile
   - gemfiles/rails41.gemfile
 notifications: