Make NODE_HOME test more flexible
Make NODE_HOME test more flexible

NODE_HOME is now different across edge and lts

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