Added support for Spartan anti-cheat as its popularity rises
Added a console message when a supported anti-cheat was recognized by VeinMiner (and improved hook registration in general)
Minor note for developers: VeinMiner#registerAntiCheatHook() now throws an IllegalStateException rather than an IllegalArgumentException when registering an existing anti-cheat hook.
Improved the accuracy of AntiAura's anti-cheat hook. Should no longer accidentally unexempt players who were exempted prior to vein mining
Fixed NoCheatPlus support not functioning as intended
Fixed an edge-case NullPointerException for misconfigured/non-existent block lists
Better validate players to ensure dead players cannot vein mine
