Technical notes on version 1.27 14Nov02  
                     13 and 14 November 2002
                       Kern Sibbald

General:
- You MUST either re-initialize your databases or use the 
    ./alter_mysql_tables
  or  
    ./alter_sqlite_tables
  in the <bacula-src>/src/cats directory to modify your database tables.
- Major improvements to dbcheck including an interactive mode.

Changes submitted this submission:
- Implemented VolumeUseDuration and MaximumVolumeJobs which control
  when a tape can be marked Used.
- New tape status "Used" means it was used and cannot be used any more.
- Defined utime_t which is 64 bit epoch time in seconds.  btime_t is
  64 bit epoch time in microseconds.
- Created alter_xxx_tables to add new columns (VolUseDuration, MaxVolJobs) to
  database. Incremented db version.
- Changed a few subroutine names concerning dates to be more descriptive.
- Fixed several places where the last filename was not stored in JCR in
  FD verify_vol.c and restore.c
- Major update to dbcheck.  Unfortunately I used subselects, which work
  perfectly fine in SQLite, but not at all in MySQL.  I must now rework
  it for MySQL. What a pain!
- Removed "Database found" from configure output. It was no longer used or valid.
- Corrected doc --working-dir => --with-working-dir  Thanks to Tuck for 
  reporting this.
- Added the database name to the error message for mismatched DB version.
- Commented out GMP and CWEB from configure as they are not currently used.