Don't distribute audit-resolv.json in npm package

I don't think they are useful enough to justify including in every
installation from npm.

Signed-off-by: Kevin Locke <[email protected]>

Author: kevinoid

.npmignore

@@ -14,4 +14,5 @@
 CHANGELOG.*
 TODO.*
 appveyor.yml
+audit-resolv.json
 jsdoc*.conf.json