Node.js agent v1.39.0

Error messages are redacted in High-security mode now.
New configurations were added for disabling some New Relic API methods. These default to enabled and are all disabled in High-security mode.
- api.custom_parameters_enabled controls newrelic.addCustomParameters()
- api.custom_events_enabled controls newrelic.recordCustomEvent()
- api.notice_error_enabled controls newrelic.noticeError()
Updated the default value for transaction_tracer.record_sql to obfuscated.
This value was previously off by default. This change brings the New Relic Node Agent defaults in line with other New Relic Agents.

Our when instrumentation better detects when a module is actually when.
Thanks to Pasi Eronen (@pasieronen) for the contribution!
Quiet a warning in our native promise instrumentation on Node 0.10.
Fixed a bug in the generic pool instrumentation affecting version 3.