TooTallNate/node-gyp — pull request #389 by fengmk2 (2014-01-24 06:17:02+00:00)
Title: Check download content shasums with SHASUMS.txt. fixed npm/npm#4541

Sometime, download node-vx.x.x.tgz was interrupt unexpected condition.

See https://gist.github.com/fengmk2/8592059 and npm/npm#4541

So we need to check the downloaded content sha1 with SHASUMS.txt file.