arenaMap in ArenaMaster moved to avoid NPE in onDisable

resources/plugin.yml

@@ -1,6 +1,6 @@
 name: MobArena
 main: com.garbagemule.MobArena.MobArena
-version: 0.94.3.3
+version: 0.94.3.4
 softdepend: [Spout,Permissions,MultiVerse,XcraftGate,Towny,Heroes,MagicSpells]
 commands:
     ma:

src/com/garbagemule/MobArena/ArenaMaster.java

@@ -53,6 +53,7 @@ public class ArenaMaster //implements Master
         plugin   = instance;
         config   = plugin.getConfig();
         arenas   = new LinkedList<Arena>();
+        arenaMap = new HashMap<Player,Arena>();
     }
     
     
@@ -254,7 +255,6 @@ public class ArenaMaster //implements Master
             arenas.add(arena);
         }
         
-        arenaMap = new HashMap<Player,Arena>();
         selectedArena = arenas.get(0);
     }