.travis.yml in sqlite3_ar_regexp-2.1.0 vs .travis.yml in sqlite3_ar_regexp-2.2.0

@@ -1,14 +1,23 @@
 before_install: gem update bundler
-env: RAKE_TASK=spec
 language: ruby
 matrix:
   include:
-  - gemfile: gemfiles/activemodel3.rb
+  # test lastest config
+  - rvm: 2.3
+
+  # test versions of ActiveRecord
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.3
+  - gemfile: gemfiles/activerecord3.rb
+    rvm: 2.3
+
+  # test versions of MRI
+  - gemfile: gemfiles/activerecord4.rb
     rvm: 2.2
-rvm:
-- 2.2
-- 2.1
-- 2.0
-- 1.9
-- rbx-2
-script: bundle exec rake $RAKE_TASK
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.1
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 2.0
+  - gemfile: gemfiles/activerecord4.rb
+    rvm: 1.9
+script: bundle exec rake spec