update test output for verify-zone version 1.6.17
Merge pull request #1846 from mind04/ldns

update test output for verify-zone version 1.6.17
API: Document set-ptr
Merge pull request #1848 from zeha/httpapi-docs

API: Document set-ptr
prepare for 3.4.1 release
document security polling feature
auth 3.4.1 changelog
fully abort query resolving if we hit more than 50 outqueries
rec 3.6.2 changelog
3.6.2 security status
clarify lack of upgrade notes for auth 3.4.1
sorry Merge branch 'master' of github.com:PowerDNS/pdns