Merge pull request #1278 from danielpeach/google-bump-bootstrap-dev-node-version

(google) bump node version for bootstrap_dev

dev/bootstrap_dev.sh

@@ -151,7 +151,7 @@ EOF
 # Start script
 
 # Install node
-NODE_VERSION=0.12
+NODE_VERSION=4.4.1
 . /etc/profile.d/nvm.sh
 nvm install $NODE_VERSION
 nvm alias default $NODE_VERSION