- If you are upgrading from SBBSecho v2.x, run "jsexec sbbsecho_upgrade.js"
  to convert your ctrl/sbbsecho.cfg to the new ctrl/sbbsecho.ini.
- Major code overhaul/re-write/modernization
- ArcMail/Attach/FD mode NOT TESTED: beware if you're using this style mailer!
- New features:
+ Easier to manage configuration file (sbbsecho.ini)
+ Multiple sysop aliases supported (for receiving netmail)
+ Mutual-exclusion-lock file (ctrl/sbbsecho.bsy) to prevent accidental
   concurrent invocations of SBBSecho
+ FileBoxes (optional inbox and outbox per node, only in BSO mode)
+ EchoList 4-char "flags" are now 25-char "keys" and much easier to deal with
+ Maximum msg age configurable for NetMail and EchoMail (separately)
+ Configurable "Area Manager" user name (default: SYSOP)
+ Configurable "Default Recipient" for netmail (default: SYSOP)
+ Far fewer command-line options, more settings in EchoCfg
+ Old command-lines will still work, but most of the legacy options are just
   ignored now. Run "sbbsecho -?" for command-line syntax and options.
Other improvements:
+ All Fido kludes, including PATH and SEEN-BY lines are stored in the
   Synchronet Message Base, always (can't be disabled)
+ Better security for inbound EchoMail (passwords are always enforced)
+ More comprehensive log output (the log output is more of a priority than the
  console output now)
+ Increased accuracy for recipient user name/alias matching
+ Higher-level of uniqueness to generated packet filenames
+ All temporary files (e.g. packets in process) are created in an
   SBBSecho-specific temporary file directory
+ No longer auto-terminates when any local key is pressed: use Ctrl-C/Break
   instead to initiate a graceful premature termination
+ Much more help text in echocfg
+ Better organization of settings in echocfg
+ Optional per-node "comments" for use in echocfg->Linked Nodes