Add Thorns to DamageCause - Related to BUKKIT-3505
Add ability to change player item in hand. Adds BUKKIT-3318
Add methods to check for conflicting enchantments. Adds BUKKIT-3830
Allow fishing success rate to be adjustable. Adds BUKKIT-3837
Pulling all pending Bukkit-JavaDoc changes
Add Beacon BlockState for hopper events. Fixes BUKKIT-3932
Spigot
EMC POM Changes
Water flow not trigger chunk loads

Make BlockFromToEvent default cancel if the flow would trigger a chunk load.
PlayerDeathEvent.getItemsToKeep

Exposes a mutable array on items a player should keep on death