Usage:  dig <direction> <room> <room name> - to create an exit
        dig <direction> -1                 - to delete an exit

Dig allows a user to create a whole new room using the new rooms Vnum. It
takes creation a step further by allowing the user to specify which
direction the new room is to be and then links the room from both ends.

The name of a new room can optionally be specified by adding it after the room 
Vnum. Room exits can also be added for existing rooms or deleted by specifying 
-1 as the destination room.

Examples:
> dig east 1001
Digs a new room with a Vnum of 1001, or if 1001 exists, creates an exit to the 
east.
> dig n 1002 The Dungeon
Creates a new room called "The Dungeon" to the north of the current room with a 
Vnum of 1002.
> dig w -1
Removes the west exit in the current room.