EchoStats now contain message timezones (when written) and a "known" flag
(bad echoes have known = false).
EchoStats are now sorted before being written to the EchoStats file.
Fixed bug in getfmsg(): trailing ex-ASCII chars of the message body would be
chopped-off - go back to using a uchar.
Re-worked packed-msg import parsing and grunged message detection a bit to
log more msg details for all EchoStats.
Added "AutoAddSubs" feature (set to true in sbbsecho.ini to enable):
- If sub-boards are created (e.g. with SCFG) in one or more message groups, the
  areas can be automatically added to your Area File (areas.bbs)
- The hub must be first configured in EchoCfg->Linked Nodes and then you set
  the GroupHub key in sbbsecho.ini to the name of the message group that this
  link is the hub for (e.g. "FidoNet"). You can specify multiple groups, if
  necessary, by comma-separating the names.