Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
19b7b7bd #561: Add clear weather World API
5929c808 #552: Add the ability to retrieve hit, step, fall, and other sounds from blocks.
CraftBukkit Changes:
e1ebdd92 #771: Add clear weather World API
424598d2 #752: Add the ability to retrieve hit, step, fall, and other sounds from blocks.
