silence a lot of debugging output at loglevel 9 (you did not see it, but it did slow things down)
fix up pre-signed zones in hybrid installations (bind + generic). Because the BIND Backend needs the DBDnssecKeeper,
while the dbdnsseckeeper needs the bindbackend to function, getting presignatures from the dbdnsseckeeper failed.
We now pass an explicit database connection for this purpose. Spotted by Christof Meerwaald.