write a default npmrc
add a status message about npmrc
Merge pull request #98 from heroku/npm-cert-bug

npm cert bug
the specified node runtime should be prior in the path
Merge pull request #102 from rwonly/fixpath

the specified node runtime should be prior in the path
add node-habits link to readme
broken link to CONTRIBUTING.md

not saying this line should be removed necessarily, but it is broken. Is there a good `CONTRIBUTING.md` file we could add in here? Maybe from another buildpack?
Merge pull request #113 from dickeyxxx/patch-1

broken link to CONTRIBUTING.md
Merge branch 'master' of github.com:heroku/heroku-buildpack-nodejs