chore(build): update node and npm on travis

BarryThePenguin · BarryThePenguin · commit 6a0c3fef519d · 2016-03-12T22:28:22.000+11:00
Use node@4.2 and npm@3
diff --git a/.travis.yml b/.travis.yml
@@ -9,9 +9,9 @@ branches:
 notifications:
   email: false
 node_js:
-  - iojs
+  - 4.2
 before_install:
-  - npm i -g npm@^2.0.0
+  - npm i -g npm@^3.0.0
   - "export DISPLAY=:99.0"
   - "sh -e /etc/init.d/xvfb start"
 before_script:
