html doc archive  gz -> bz2
reload all lmdb backend threads
initial stab at 'ALIAS' or 'ANAME' records for PowerDNS. To use, set an ALIAS record on your apex. Secondly, configure PowerDNS with 'recursor=a.recursor.ip'. Sample zone:

@	IN	SOA	ns1 ahu 2014091619 7200 3600 1209600 3600
@	IN	NS	ns1
@	IN	NS	ns2
www	IN	CNAME	xs.powerdns.com.
ns1	IN	A	1.2.3.4
ns2	IN	A	4.3.2.1
@	IN	ALIAS	www.powerdns.com.
@	IN	MX	25 outpost.ds9a.nl.
elsewhere	IN	CNAME	@

Semantics are that real records override the ALIAS. We only reach out to the alias record if nothing else matched.
this currently breaks ANY queries for the apex btw.
init script: support DAEMON_ARGS

Support additional command line parameters by sourcing
/etc/default/pdns and taking DAEMON_ARGS from there.
init script: ensure socket dir exists

This is an old change in Debian that is apparently necessary on some
(newer) systems where the socket dir might vanish on reboot.
document udp6-queries, udp4-queries, add rd-queries, recursion-unanswered metrics & document. Closes #1400.
don't link the bindparser into the bindbackend, it causes double static initialization of s_di when loading as a dynmodule, which causes double static deinitialization, which causes crashes. Fixes #1690
hack dependency build order a bit
Merge pull request #1719 from mind04/lmdb

reload all lmdb backend threads
Merge pull request #1679 from mind04/html-bz2

html doc archive  gz -> bz2
some documentation
remove spurious 'any' (thanks seth) plus clarify CNAME walking
typos
Merge pull request #1724 from zeha/f/fix-1149

pdns init script improvements, fixes #1149, closes #1721 (thanks @tuxis-ie as well!)
document 3.4.0-rc2; move rec 3.6.1 behind it
clarify, thanks @mind04
EDNS0, AXFR details, rationale, some wording improvements
send empty SERVFAIL after a backend throws a DBException
DNAME don't sign the synthesised CNAME
update download url in release notes