Added a setPlayerHunger and getPlayerHunger into the Player API.
Added getHeldItem that returns an ItemStack of the Player's currently held item.
Added addPotionEffect method with a parameter of PotionEffect, which will allow customization of the effect, such as the type, the length of time that it is effective for, the amplifier, and if it is ambient or not, which basically means if it is caused by the environment(such as a Beacon)