Name: set_exits - set exit directions and rooms in a room

Syntax: 
	#include <room2.h> 
	set_exits(string *exit_arr)

Description:
	The set_exits call sets the exit directions and exit rooms in a room.
	The single argument is an array of even length with a filename and
	a direction string after each other.

	The exit directions are displayed in the obvious exits line, just
	after the long description, unless set otherwise, see etxd_room.

	Normal directions are "north", "south", "east", "west", "up" and
	"down", but any string can be used to specify a direction.

	The filename doesn't need to have a leading slash.

Return value: none

Examples:
	set_exits( ({ "room/workroom", "out", "room/post", "post" }) );

See also: room/query_dest_dir