make dnsbulktest able to do other queries than just 'A', plus prepare infrastructure for simultaneous testing of different query types (should we want this)
nit
try to base release versioning on PDNS_TAG even harder
Merge branch 'master' of github.com:PowerDNS/pdns
add note that backends should not internally try to expand wildcards, thanks to 'lupine' for noticing
Merge branch 'master' of github.com:PowerDNS/pdns