Set ca config for npm issue
Resolved Issue OSP-26: Fix NPM issue

See:

http://blog.npmjs.org/post/78085451721/npms-self-signed-certificate-is-n
o-more

https://github.com/crushlovely/heroku-buildpack-nodejs-grunt/commit/b559
92eba09bf14c11d2075414e8e090d0e8677c

Subcommit(s):
  851ecd2 Set ca config for npm issue