Task/435 loglib lmi et al

### Description
Pretty much everything for the log migration.
  o LM_I for start/stop transaction.
  o IP and port in start/stop messages.
  o N/A instead of 'unset'.
  o Long names for levels
  o renamed the logfile from Log to .log
  o time zone in log line
  o 2 hour bug fixed
  o milliseconds inside TIME - one record less in the log line

What's still missing is the alarms, LM_W and LM_E:s with 'special' strings in the msg part.

Maybe we should inlude a line in the CHANGES_NEXT_RELEASE to tell (to users) that the time reference has changed, now were are using local time instead of GMT.