inform other mods when npc_talk_reload is issued

init.lua

@@ -1,5 +1,10 @@
 yl_speak_up = {}
 
+-- some mods (i.e. yl_speak_up_addons) need to be called again when
+-- this mod is reloaded via chat command "/npc_talk_reload";
+-- this is a list of such functions
+yl_speak_up.inform_when_reloaded = {}
+
 local modpath = minetest.get_modpath("yl_speak_up")..DIR_DELIM
 yl_speak_up.worldpath = minetest.get_worldpath()..DIR_DELIM
 yl_speak_up.modpath = modpath
@@ -122,6 +127,11 @@ yl_speak_up.reload = function(modpath, log_entry)
 	if(log_entry) then
 		minetest.log("action","[MOD] yl_speak_up "..tostring(log_entry))
 	end
+
+	-- reload all mods that may have to add something as well
+	for i, f in ipairs(yl_speak_up.inform_when_reloaded) do
+		f()
+	end
 end
 
 -- register all the necessary things; this ought to be done only once