Implement sumTeamDeaths, maxDeaths and deathPenalty.

Improved calculating death penalty. Death count now checks if it must include teamDeaths.
maxDeaths now is working, as deathHandicap will be set to minimal value from it and current deathCount.
Change level and pointsToNextLevel calculation. Now it will remove deathCount * deathPenalty points from rawBlockCount and use new value to calculate current level and points till next one.

src/main/java/world/bentobox/level/calculators/CalcIslandLevel.java

@@ -7,6 +7,7 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
+import java.util.UUID;
 
 import org.bukkit.Bukkit;
 import org.bukkit.ChunkSnapshot;
@@ -214,12 +215,38 @@ private void tidyUp() {
         task.cancel();
         // Finalize calculations
         result.rawBlockCount += (long)(result.underWaterBlockCount * addon.getSettings().getUnderWaterMultiplier());
+
         // Set the death penalty
-        result.deathHandicap = addon.getPlayers().getDeaths(world, island.getOwner());
-        // Set final score
-        result.level = (result.rawBlockCount / addon.getSettings().getLevelCost()) - result.deathHandicap - island.getLevelHandicap();
+        if (this.addon.getSettings().isSumTeamDeaths())
+        {
+            for (UUID uuid : this.island.getMemberSet())
+            {
+                this.result.deathHandicap += this.addon.getPlayers().getDeaths(this.world, uuid);
+            }
+        }
+        else
+        {
+            this.result.deathHandicap =
+                this.addon.getPlayers().getDeaths(this.world, this.island.getOwner());
+        }
+
+        // Just lazy check for min death count.
+		this.result.deathHandicap = Math.min(this.result.deathHandicap, this.addon.getSettings().getMaxDeaths());
+
+		long blockAndDeathPoints = this.result.rawBlockCount;
+
+        if (this.addon.getSettings().getDeathPenalty() > 0)
+		{
+			// Proper death penalty calculation.
+			blockAndDeathPoints -= this.result.deathHandicap * this.addon.getSettings().getDeathPenalty();
+		}
+
+		this.result.level = blockAndDeathPoints / this.addon.getSettings().getLevelCost() - this.island.getLevelHandicap();
+
         // Calculate how many points are required to get to the next level
-        result.pointsToNextLevel = addon.getSettings().getLevelCost() - (result.rawBlockCount % addon.getSettings().getLevelCost());
+        this.result.pointsToNextLevel = this.addon.getSettings().getLevelCost() -
+			(blockAndDeathPoints % this.addon.getSettings().getLevelCost());
+
         // Report
         result.report = getReport();
         // All done.