chore(ci): update architecture used

Author: wesleycho

.travis.yml

@@ -1,14 +1,23 @@
 language: node_js
 node_js:
-  - "0.10"
+  - "5.9"
+env:
+  - CXX=g++-4.8
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-4.8
 
 before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
-  - npm install grunt-cli
+  - npm install --quiet -g gulp
   - bower install
 
 script: "gulp test"
+sudo: false
 
 git:
   depth: 10