- Add Date, Job, level to updates to .bsr file in

- Add Date, Job, level to updates to .bsr file in
  dird/backup.c
- Add debug info to dvd-freespace.in
- Fix hard coded bacula.sql in make_catalog_backup reported
  by a user.
- Make sure a verify volume to catalog never reports an error
  if there are zero files to verify.
- Remove confusing debug info in filed/backup.c on network
  error.
- Make sure output from console is not sent to system log.
- Convert open_dev() into a class method.
- Change VolHdr.VolName to VolHdr.VolumeName.
- Add a flag in the device state word to indicate that
  we found Media in the drive (DVD).
- Make mount_dev() and unmount_dev() return bool.