lxmppd -> core -> offlinemessages.lua
	requires	"util.datamanager"
	module		"offlinemessage"

function new(user, host, stanza)
	returns a function that stores the offline message it received

This module offers storing of offline messages.

Description:	If the user that is supposed to get the message is not online,
		we store the messages locally as offline messages for later
		processing.