Removed Trace Logging from FileExists.

Update will now use copy to update, instead of move.

NzbDrone.Common/DiskProvider.cs

@@ -31,7 +31,6 @@ public virtual bool FolderExists(string path)
 
         public virtual bool FileExists(string path)
         {
-            Logger.Trace("Checking if File Exists: {0}", path);
             return File.Exists(path);
         }
 

NzbDrone.Update/Providers/UpdateProvider.cs

@@ -78,7 +78,7 @@ public virtual void Start(string targetFolder)
 
             try
             {
-                _diskProvider.MoveDirectory(_enviromentProvider.GetUpdatePackageFolder(), targetFolder);
+                _diskProvider.CopyDirectory(_enviromentProvider.GetUpdatePackageFolder(), targetFolder);
             }
             catch (Exception e)
             {