Clean up player references even on exception.

src/main/java/com/massivecraft/massivecore/cmd/MassiveCommand.java

@@ -247,6 +247,8 @@ public class MassiveCommand
 			}
 		}
 		
+		try
+		{
 			// Set Sender Variables
 			this.sender = sender;
 			this.senderIsConsole = true;
@@ -260,12 +262,15 @@ public class MassiveCommand
 			
 			if ( ! isValidCall(this.sender, this.getArgs())) return;
 			perform();
-		
+		}
+		finally
+		{
 			// Unset Sender Variables
 			this.sender = null;
 			this.me = null;
 			this.unsetSenderVars();
 		}
+	}
 	
 	public void fixSenderVars() 
 	{