Fixed DroppedItems not being restored after save

src/pocketmine/entity/Entity.php

@@ -186,6 +186,7 @@ abstract class Entity extends Position implements Metadatable{
 		$this->justCreated = false;
 		$this->server->getPluginManager()->callEvent(new EntitySpawnEvent($this));
 		$this->scheduleUpdate();
+
 	}
 
 	public function saveNBT(){

src/pocketmine/level/Level.php

@@ -1128,7 +1128,7 @@ class Level{
 
 					if($nbt->id instanceof String){ //New format
 						switch($nbt["id"]){
-							case "Ttem":
+							case "Item":
 								(new DroppedItem($this, $nbt))->spawnToAll();
 								break;
 						}