Added EventHandler for negative playerRating

When player rating goes below -2000, the player is deemed 'Traitor' and is
treated as an enemy by ALL factions and KOS.

This EH checks for negative rating (currently below zero) and resets back
to zero.
If the future rating value is negative, the rating change is set to zero
else continues normally.

Referencing: #151

Author: ultranoobian

source/INIT.sqf

@@ -42,10 +42,23 @@ if (isMultiplayer) then {
     };
 
 	if (_revive_activated == 1) then {execVM "duws_revive\reviveInit.sqf"};
+    
 	PlayerKilledEH = player addEventHandler ["killed", {
         commandpointsblu1 = commandpointsblu1 - DUWSMP_CP_death_cost;
         publicVariable "commandpointsblu1";
     }];
+    
+    PlayerBetrayerEH = player addEventHandler ["HandleRating", {
+        // If playerRating is negative (traitor) then reset to zero
+        _playerRating = rating _this select 0;
+        if (_playerRating < 0) then {            
+            player addRating (0 - _playerRating);
+        };
+        // If final rating is positive, do not modify, else zero.
+        _rating = _this select 1;
+        [0,_rating] select (_playerRating - _rating) > 0);    
+    }];
+    
 	"support_specialized_training_available" addPublicVariableEventHandler {lbSetColor [2103, 11, [0, 1, 0, 1]];};
     "support_armory_available" addPublicVariableEventHandler {
         hq_blu1 addaction ["<t color='#ff0066'>Armory (VA)</t>","bisArsenal.sqf", "", 0, true, true, "", "_this == player"];