This update adds two new features. First, there is a new config option for an FFA (free for all) mode. In this mode, regardless of how many lives you have, you can kill other players and gain a life.
Second, you can now blacklist worlds from being affected by the ThirdLife hardcore system. If a player dies/kills in one of the blacklisted worlds, it will have no effect
On top of both of these new features, you can now blacklist commands with more than one argument (so instead of just blacklisting /tl you could blacklist /tl enable). I have also changed the name of "Final Spawn Point" to "Spectator Spawn" because of some confusion the old name caused.