Node.js agent v1.39.1

Bug fixes

• Fixed a transaction state loss introduced in Node 7.10.0 when using net.createConnection.

  Added a new segment for net.connect, net.createConnection, and http.Agent#createConnection. Sockets created within a transaction also have their emit bound to the segment.

• Fixed a typo about the name of the default configuration file. Thanks Jacob LeGrone (@jlegrone)!