Specified a different location for the Log File.

Changed code to use log Info
Changed code to append error messages rather than replace text
Added/Changed code to use Log4Net.
Changed logic for Updates to Use IDs rather than Objects for internal Updates
Added a FormatColumn token to handle DTS, Added comments to describe tokens
Added methods ParentRefU and ParentRefU2 to support otther changes

PROMS/DataLoader/frmErrors.cs

@@ -26,8 +26,8 @@ namespace DataLoader
 		public void Add(string err)
 		{
 			_MyErrors.Add(err);
-			tbErrors.Text += sep + err;
 			tbErrors.SelectionStart = tbErrors.TextLength;
+			tbErrors.SelectedText = sep + err;
 			sep = "\r\n";
 			Show();
 			Application.DoEvents();