Maintainer: me

Compile tested: armv7l, OpenWRT SDK
Run tested: armv7l Linksys WRT1900ACS, OpenWrt SNAPSHOT, r9987-655fff1571 -
confirmed PowerDNS recursor links correctly against libraries and runs on my
target environment.

Description:
PowerDNS Recursor is a high-performance resolving name server, utilizing
multiple processor and including Lua scripting capabilities.

This commit includes the recursive nameserver

https://www.powerdns.com/recursor.html

Signed-off-by: James Taylor <james@jtaylor.id.au>

PowerDNS released two new versions which together add some features and address security issues.
Changelog: https://doc.powerdns.com/authoritative/changelog/4.1.html

This release and 4.1.9 together fix the following security advisories:

PowerDNS Security Advisory 2019-04 (CVE-2019-10162)
PowerDNS Security Advisory 2019-05 (CVE-2019-10163)

Signed-off-by: James Taylor <james@jtaylor.id.au>