Merge remote-tracking branch 'origin/stable'

# Conflicts:
#	composer.json
#	composer.lock
#	resources/vanilla
#	src/CrashDump.php
#	src/PocketMine.php
#	src/pocketmine/Server.php
#	src/pocketmine/item/Bucket.php
#	src/pocketmine/item/Item.php
#	src/pocketmine/level/format/Chunk.php
#	src/pocketmine/level/format/io/leveldb/LevelDB.php
#	src/pocketmine/level/format/io/region/McRegion.php
#	src/pocketmine/network/mcpe/protocol/BatchPacket.php
#	src/pocketmine/tile/Furnace.php
#	src/pocketmine/utils/UUID.php
#	src/utils/ServerKiller.php

src/item/Item.php

@@ -460,6 +460,16 @@ class Item implements \JsonSerializable{
 		return 0;
 	}
 
+	/**
+	 * Returns an item after burning fuel
+	 */
+	public function getFuelResidue() : Item{
+		$item = clone $this;
+		$item->pop();
+
+		return $item;
+	}
+
 	/**
 	 * Returns how many points of damage this item will deal to an entity when used as a weapon.
 	 */

src/item/LiquidBucket.php

@@ -52,6 +52,10 @@ class LiquidBucket extends Item{
 		return 0;
 	}
 
+	public function getFuelResidue() : Item{
+		return VanillaItems::BUCKET();
+	}
+
 	public function onInteractBlock(Player $player, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector) : ItemUseResult{
 		if(!$blockReplace->canBeReplaced()){
 			return ItemUseResult::NONE();