Don't cap food level at 20 when eating. Fixes BUKKIT-1667

The amount of food gained when eating is used for calculating the food
saturation value so capping it at 20 at this point causes us to get
incorrect results. FoodMetaData.eat caps it at 20 anyway so we're safe to
not do so here.

Also readds a line from mc-dev that was mistakenly removed.

src/main/java/net/minecraft/server/ItemFood.java

@@ -29,13 +29,14 @@ public class ItemFood extends Item {
         // CraftBukkit start
         int oldFoodLevel = entityhuman.getFoodData().foodLevel;
 
-        org.bukkit.event.entity.FoodLevelChangeEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callFoodLevelChangeEvent(entityhuman, Math.min(this.getNutrition() + oldFoodLevel, 20));
+        org.bukkit.event.entity.FoodLevelChangeEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callFoodLevelChangeEvent(entityhuman, this.getNutrition() + oldFoodLevel);
 
         if (!event.isCancelled()) {
             entityhuman.getFoodData().eat(event.getFoodLevel() - oldFoodLevel, this.getSaturationModifier());
         }
         // CraftBukkit end
 
+        world.makeSound(entityhuman, "random.burp", 0.5F, world.random.nextFloat() * 0.1F + 0.9F);
         if (!world.isStatic && this.bX > 0 && world.random.nextFloat() < this.ca) {
             entityhuman.addEffect(new MobEffect(this.bX, this.bY * 20, this.bZ));
         }