Revert "PlayerItemDamageEvent"

This reverts commit bec8ae01c82b26aab653f7e4dce268fac525ff4a because
the PlayerItemDamageEvent is not in Bukkit and we don't change the
Bukkit API.
Revert "Snapshot support."

This reverts commit 9e3465649347b7b4a81ca00be8f746e4176684b9 as we have
our own packet manipulating and this conflicts.
Revert "Add oreobfuscator for Spigot."

This reverts commit 9b60d1c436dc57d263cf3f9dbc90d834f772ec1d.

Conflicts:
	src/main/java/org/bukkit/craftbukkit/CraftWorld.java
	src/main/java/org/bukkit/craftbukkit/Spigot.java
Rebuild Surge onto newest Spigot.

Signed-off-by: V10lator <v10lator@myway.de>
Revert "Improved Timings System"

This reverts commit 3cbb60dabe7f04ddfd20e67fbd00161e741791d5.

Conflicts:
	src/main/java/net/minecraft/server/Entity.java
	src/main/java/net/minecraft/server/MinecraftServer.java
	src/main/java/net/minecraft/server/World.java
	src/main/java/org/bukkit/craftbukkit/SpigotTimings.java
Rebuild Surge onto newest Spigot².

Signed-off-by: V10lator <v10lator@myway.de>