Add clear() call to the DNS cache on startup. On systems with prolonged process life time, it's likely that the DNS cache is holding bad data, so we might as well reinitialize. add tools/checkreqs.pl and custom Makefile.PL Fix Push.pm so that shutdown_broker state kills alarms. EXPERIMETAL Try to work with servers that send 400/408 upon too many connections (the sysadmins must hate me) by graceful