.travis.yml in pa-1.3.0 vs .travis.yml in pa-1.3.1

@@ -1,10 +1,5 @@
 language: ruby
 rvm:
-  - 1.8.7
-  - 1.9.2
   - 1.9.3
-  - jruby-18mode
-  - jruby-19mode
-  - rbx-18mode
   - rbx-19mode
 script: bundle exec rspec spec