Parse the old pre-standard TZUTCINFO kludge line in fidomsg_to_echostat_msg()

Use the SBBSecho PID info as the TID field, by default, in export echostats
Don't include the Total* stats that are zero, in echostats (0 is assumed)
Uppercase the echotag when auto-adding a sub to the Area File.
Implemented long-awaited "bad echo" re-toss feature (use '-R' command-line
option to enable).