Feature: Added support for de/encoding certain OPT options.
Version 5.1.0 - 2019-01-22
Feature: Added support for the RP record type.
Version 5.0.0 - 2018-06-01
Breaking: Node.js 6.0.0 or greater is now required.
Feature: Added support for DNSSEC record types.
Version 4.1.0 - 2018-02-11
Feature: Added support for the MX record type.
Version 4.0.0 - 2018-02-04
Feature: Added streamEncode and streamDecode methods for encoding TCP packets.
Breaking: Changed the decoded value of TXT records to an array of Buffers. This is to accomodate DNS-SD records which rely on the individual strings record being separated.
Breaking: Renamed the flag_trunc and flag_auth to flag_tc and flag_aa to match the names of these in the dns standards.
Version 3.0.0 - 2018-01-12
Breaking: The class option has been changed from integer to string.
Version 2.0.0 - 2018-01-11
Breaking: Converted module to ES2015, now requires Node.js 4.0 or greater
