Small bug fixes and log cleanups.

utils.lua

@@ -30,12 +30,20 @@ end
 
 function npc.utils.get_map_keys(map)
 	local result = {}
-	for key, value in pairs(map) do
+	for key, _ in pairs(map) do
 		table.insert(result, key)
 	end
 	return result
 end
 
+function npc.utils.get_map_values(map)
+	local result = {}
+	for _, value in pairs(map) do
+		table.insert(result, value)
+	end
+	return result
+end
+
 -- This function searches for a node given the conditions specified in the
 -- query object, starting from the given start_pos and up to a certain, specified
 -- range.