Displaying file format version for an item in FieldLogViewer
Active WebRequest type scope items are repeated in new log files
Repeated WebRequestStart items for new request data

* FL.UpdateWebRequestStart repeats the last WebRequestStart scope item and adds newly available data about the web request
* FieldLogViewer picks up the repeated item and updates the data of the first item to make it available for the entire request (as if it were already available from the start)
* Reverted accidental commit of the file format specification and updated it for the new code