honor SOA-EDIT while considering "empty IXFR" fallback, fixes #1835
Fix ordername for SOA record after update
Use transaction when updating serial
API: Replace HTTP Basic auth with static key in custom header

Given that the key is sent in a custom header, this should prevent
any possible CSRF attacks.

Fixes #1769.
add secpoll to auth compilation & linking
actually hook up the security polling
update pdns.conf-dist
make very sure we don't keel over if something goes wrong polling security status in auth
update test output for verify-zone version 1.6.17
Merge pull request #1847 from mind04/ldns2

update test output for verify-zone version 1.6.17
add NSECx cache to gsql backend
better key for packetcache
ticket based locking