chore(Build): Update node version to 4

Brian Hann · Brian Hann · commit d16ce51f928d · 2015-11-12T14:19:01.000-06:00
This should hopefully allow the fontello task to run properly
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ language: node_js
 sudo: false # defaults to sending build to container-based infrastructure on Travis
 
 node_js:
-  - '0.10'
+  - 4
 
 notifications:
   webhooks:
