This commit changes every 'world.log <<' message with a loggable proc-
log_to_dd().
This is adjustable in the config; If LOG_WORLD_OUTPUT is present, all
things sent to world.log will show up in the standard /data/logs/ logs.
These logs will contain the following (in order):
Timestamp
"DD_OUTPUT:"
The message.
The config option for this, by default, is turned off.