Avoid checking code on "old" Node.js versions

obenjiro · web-flow · commit ab5fc2586ecf · 2017-10-06T08:36:06.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,8 @@
 language: node_js
 node_js:
+  - "8"
+  - "7"
   - "6"
-  - "5"
-  - "4"
-  - "0.12"
 script:
   - npm link
   - npm link simplepeg
