first step towards new log with transaction id in logfile

### Description
First step towards new log file format
  - removed verbose (rest requests still to be removed)
  - new layout of the lines in the log file
  - transactionId stored and made part of the log file

That is explained is a long comment about *transactionId*.
Unfortunately, I made some reordering of the code, as I needed to call this chunk of code from two different places, and the comments about the transactionId are still where one of the calls are, not here where the function is ...

I will move the comment to this function.