Fixed several AI bugs, added log system

- Fixes 0000031: Incap is not working correctly
- NPC AI now considers deathblow values correctly
- AI state transition further debugged
- Pet now follows owner after killing attacker
- Added debug log system
- Cleaned up system console from system.out messages

src/main/NGECore.java

@@ -111,6 +111,7 @@ import services.spawn.SpawnService;
 import services.sui.SUIService;
 import services.trade.TradeService;
 import services.travel.TravelService;
+import tools.DevLogQueuer;
 import engine.clientdata.ClientFileManager;
 import engine.clientdata.visitors.CrcStringTableVisitor;
 import engine.clientdata.visitors.DatatableVisitor;
@@ -535,6 +536,9 @@ public class NGECore {
 		
 		browserService = new BrowserService(this);
 		
+		DevLogQueuer devLogQueuer = new DevLogQueuer();
+		
+		
 		didServerCrash = false;
 		System.out.println("Started Server.");
 		cleanupCreatureODB();