Rename server log files to servername.log.

Changed the server log file name to servername.log instead of
naming it after the system service name with an appended `d'.
Rename system services after server executables.

Changed the Sys-V init script names to match the server executables
by removing the last `d' implying system daemon. Changed the Makefile
to write appropriately named files.
New system unit and Sys-V init files for rbldns.

Added new systemd unit and Sys-V init script files for the rbldns
server. Updated Makefile.am to include rbldns.service file in the
distribution tar file.
Update RPM spec file to include rbldns tools.

Updated RPM specification to install rbldns server and related
systemd unit or Sys-V init script files as required. Also changed
system services' name to remove appending `d', that used to imply
system daemon status.