Update .travis.yml

cheton · cheton · commit 2af5930cd07a · 2017-01-26T23:58:00.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,10 +1,8 @@
 dist: trusty
 language: node_js
 node_js:
+  - '6'
   - '5'
   - '4'
-  - '0.12'
-  - '0.10'
-  - 'iojs'
 after_success:
   - npm run coveralls
