Fix patches from camera API

Bukkit-Patches/0004-BungeeCord-Support.patch

@@ -9,9 +9,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/entity/Player.java
 +++ b/src/main/java/org/bukkit/entity/Player.java
 @@ -0,0 +0,0 @@ public interface Player extends HumanEntity, Conversable, CommandSender, Offline
-      * @see Player#setHealthScaled(boolean)
+      * {@link GameMode#SPECTATOR}
       */
-     public double getHealthScale();
+     public void setSpectatorTarget(Entity entity);
 +
 +    // Spigot start
 +    public class Spigot extends Entity.Spigot

CraftBukkit-Patches/0003-Skeleton-API-Implementations.patch

@@ -108,8 +108,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
 @@ -0,0 +0,0 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
-         }
-         collection.add(new AttributeModifiable(getHandle().getAttributeMap(), (new AttributeRanged(null, "generic.maxHealth", scaledHealth ? healthScale : getMaxHealth(), 0.0D, Float.MAX_VALUE)).a("Max Health").a(true)));
+         Preconditions.checkArgument(getGameMode() == GameMode.SPECTATOR, "Player must be in spectator mode");
+         getHandle().setSpectatorTarget((entity == null) ? null : ((CraftEntity) entity).getHandle());
      }
 +
 +    // Spigot start

CraftBukkit-Patches/0132-Prevent-a-crash-involving-attributes.patch

@@ -24,5 +24,5 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +        // Spigot end
      }
  
-     // Spigot start
+     @Override
 --