Security Fix , all test passed.

[ralic]

Before

added 361 packages from 207 contributors, removed 327 packages, updated 87 packages and audited 3537 packages in 53.944s
found 78 vulnerabilities (2 low, 13 moderate, 61 high, 2 critical)
  run `npm audit fix` to fix them, or `npm audit` for details

After

found 0 vulnerabilities

Note that Node.js v6 test failed. All other higher versions tests passed.

Test Report:
https://travis-ci.org/SaferNodeJS/make-fetch-happen/builds/602452439