id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13078	[Patch] Add new listener that fires before first layer is added and after last one is removed.	michael2402	team	"Add a new LayerAvailabilityListener

It makes code for the MainPanel simplier and more robust."	enhancement	closed	normal	16.06	Core		fixed	gsoc-core	Don-vip bastiK stoecker