Added missing paren.
Updated priv help to include the new roles.

Namely aesir, vanir, wysard.
Added new command group and initial Aesir comands.
Renamed 'addexit' to 'open' and split 'dig' out of 'redit'.
Fixed up admin help.
Work on admin help.
Added help text for admin help.
Improvements to @dig command.

Also added admin commands to command-or-alias logic.