Most of the changes are in EchoCfg:
- SBBSecho and EchoCfg will now maintain auto-backups of the sbbsecho.ini file
- AutoAddSubs now defaults to true/enabled: this setting is harmless without
  further configuring linked nodes (Uplink for Groups / GroupHub)
- Global Settings are now a separate sub-menu in EchoCfg
- EchoCfg remembers current selection on (more) sub-menus
- Sub-menus have been rearranged and resized
- Numerous Online Help text updates in EchoCfg
- Adding missing/new settings to EchoCfg:
  Log Timestamp Format
  Strict Packet Passwords
  Use FTN Domain/Zone Map
  BSY Mutex File Timeout
  BSO Lock Attempt Delay
  BSO Lock Attempt Limit
  Config File Backups
  Linked Nodes->Uplink for Message Groups
  Echo Statistics File
  Outgoing Semaphore File
  Automatically Add New Subs to Area File
  Maximum Backups to Maintain of Area File
  Relay Filtered Messages
  (everything you can set in sbbsecho.ini should now be editable via EchoCfg)