Merge pull request #486 from CoderCow/patch-1

Configurable Path for the Logs
/who will list player ids only when the -i parameter is added.
The /auth command will no longer be listed in /help if there's no use of it.
-The command delegate of commands can now be set afterwards. This allows other plugins easily override / extend existing commands.
-Added another command reference list so that original tshock commands can easily be identified.
Merge pull request #487 from CoderCow/patch-1

Re-added Olink's commit & integrated more of @CoderCow's stuff.