Add travis CI configuration

.travis.yml

@@ -0,0 +1,11 @@
+language: ruby
+rvm:
+  - 1.8.7
+  - 1.9.2
+  - 1.9.3
+  - jruby-18mode # JRuby in 1.8 mode
+  - jruby-19mode # JRuby in 1.9 mode
+  - rbx-18mode
+  # - rbx-19mode # currently in active development, may or may not work for your project
+# uncomment this line if your project needs to run something other than `rake`:
+# script: bundle exec rspec spec