add iojs v1.2.0 to travis, fixes #100

.travis.yml

@@ -1,6 +1,7 @@
 language: node_js
 node_js:
   - "0.12"
+  - "iojs-v1.2"
 before_script:
   - cp "modules/config.example.js" "modules/config.js"
 before_install: