Add logging.

Controllers/WatchListController.cs

@@ -1,10 +1,7 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Web.Http;
-using MarketData.MarketDataModel;
+using MarketData;
 using MarketData.DataAccess;
 using MarketDataServer.Authorization;
 
@@ -14,7 +11,7 @@ namespace MarketDataServer.Controllers
   {
     public IEnumerable<String> GetWatchList(String token,String watchList)
     {
-      Console.WriteLine(String.Format("[{0:G}][WatchListController::GetWatchList]", DateTime.Now));
+      MDTrace.WriteLine(LogLevel.DEBUG,String.Format("[{0:G}][WatchListController::GetWatchList]", DateTime.Now));
       if (!Authorizations.GetInstance().IsAuthorized(token)) return null;
       return WatchListDA.GetWatchList(watchList);
     }