dbServers cannot be registered when their names appear in this
variable, so they should remain inactive. This feature is mainly
intended for debugging, so the crude name search should be OK.
This allows the rsrv to be excluded by removing 'include rsrv.dbd'
from a local copy of the base.dbd file.
Server initialization, running and pausing are moved to new
methods of the dbServer object, and the existing registration
path is converted to just use the new rsrv.dbd file.
