New osm v1.12

Changes:

• osm will now reprocess exim log line events for the total number of
  recipients listed. This ensures that for this type of detection a
  single email sent to hundreds of recipients will not count as a single
  event, but the total number of recipients. This option can be disabled
  if each log line should be treated as a single event in the Main
  Configuration
• Improved parent/child pipe processing to avoid delays due to buffering