Merge pull request fb55#158 from fb55/travis-up

Update .travis.yml

Author: fb55

.travis.yml

@@ -1,8 +1,16 @@
 language: node_js
 node_js:
-  - 0.10
-  - 0.11
+  - stable
+  - unstable
+  - 5.1
+  - 4.2
+  - 0.12
 
 sudo: false
 
+matrix:
+  fast_finish: true
+  allow_failures:
+    - node_js: unstable
+
 script: npm run coveralls