security poll
improve "subversion" idea, add delegation
make sure we don't launch the query distribution thread if configured to run unthreaded
clarify -1 semantics
implement security polling according to docs/security-poll.md
actually add the relevant files
Merge branch 'secpoll' of github.com:ahupowerdns/pdns into secpoll
report aborted test runs in jenkins
Revert "make sure we don't launch the query distribution thread if configured to run unthreaded"

This reverts commit cfc99d7ea24aa40ca0d8cabd11ca2257626197bf.
honor SOA-EDIT while considering "empty IXFR" fallback, fixes #1835
improve error message on reporting failed secpoll retrieval
second attempt to prevent us from launching the distributor thread when attempting to operate unthreaded
we duplicated the ns_t_enums from resolv.h or arpa/nameser.h for no good reason. Shift to QType::enum.
fix test for ns_t rename
Merge branch 'master' of github.com:PowerDNS/pdns into secpoll
recursor security poll is now feature complete. Distributors can set their security domain suffix in PACKAGEVERSION, ie PACKAGEVERSION=3.6.1-2.debian
implement security polling for auth
Revert "make sure we don't launch the query distribution thread if configured to run unthreaded"

This reverts commit 16207ec6ba9c8710635e80236e2a3f30dd77face.
fix include that breaks make dist
fix up compilation on RHEL (missing include)