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:
1e843b72 #510: Add NamespacedKey#fromString() to fetch from user input
a4d18241 #581: Add methods to modify despawn delay for wandering villagers
CraftBukkit Changes:
0cd8f19f #802: Add methods to modify despawn delay for wandering villagers
d5c5d998 SPIGOT-6362: ConcurrentModificationException: null --> Server Crash
8c7d69fe SPIGOT-5228: Entities that are removed during chunk unloads are not properly removed from the chunk.
