version 1.0.19 of the DCC source

I've put the verison 1.0.19 DCC source in http://www.rhyolite.com/dcc/dcc-src/

Unless you are trying to make it work on NetBSD, the changes are probably
not earth shaking.

1.0.19
    improve `cdcc stats` flood formatting
    fix `cdcc "host domain.com; stats all"`
    change dccproc to use the value of the Return-Path: header for the
        envelope-From checksum if the header is present and -f is not used.
    fix `dbclean -S -N` when the whitelist is empty
    add rough support for NetBSD.
    mention dccd in the INSTALL file.
    fix for parsing "-L error,LOCAL1.ERR" from Vincent Schonau


Vernon Schryver    vjs@rhyolite.com