Add node 6.9.3, remove node 6.9.1
Add node 6.9.3, remove node 6.9.1

source url: https://nodejs.org/dist/v6.9.3/node-v6.9.3.tar.gz
source sha256: 5abdc3b77e011d664e13d74cab130680a8652b5cd23a63d2a17496d91399d5b5

[#136991485]

pkumar-appd/nodejs-buildpack,cloudfoundry/nodejs-buildpack,pkumar-appd/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack,kauffecup/nodejs-buildpack,oocl-ncc-itm/nodejs-buildpack,kauffecup/nodejs-buildpack,cloudfoundry/nodejs-buildpack,oocl-ncc-itm/nodejs-buildpack,cloudfoundry/nodejs-buildpack,cloudfoundry/nodejs-buildpack,pkumar-appd/nodejs-buildpack,ks2software/nodejs-buildpack,kauffecup/nodejs-buildpack,oocl-ncc-itm/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack