Add new haltOnFailure setting, defaults to false. If present in packageJson.coverage.haltOnFailure, will use that value.
Add new haltOnFailure setting, defaults to false. If present in packageJson.coverage.haltOnFailure, will use that value.

If haltOnFailure = true and success = false, return 1 from process, else return 0

mattyboy/istanbul-slack-notify