Parted 1.6.20

[Andrew Clausen]

Hi all,

I've had some trouble uploading to ftp-upload.gnu.org.  I need to
wait for a timeout...  In any case, it will be up soon.

Change summary: merged in Amiga support, bug fixes.

Complete change log:
* libparted/disk_dos.c (msdos_probe): look for SBML signature at offset 0x40,
  rather than 0x39.  (oops!)
* libparted/disk_amiga.c: added (from Sven Luther)
  Note: I did some cleanups, added assertions, etc.
* libparted/fs_amiga/affs.c: added.
* libparted/fs_amiga/affs.h: added.
* libparted/fs_amiga/amiga.c: added.
* libparted/fs_amiga/amiga.h: added.
* libparted/fs_amiga/apfs.c: added.
* libparted/fs_amiga/apfs.h: added.
* libparted/fs_amiga/asfs.c: added.
* libparted/fs_amiga/asfs.h: added.
* libparted/fs_amiga/interface.c: added.
* libparted/disk_dos.c (msdos_probe): Fixed typo changed strcmp to
  strncmp.
* libparted/disk_dvh.c (_generate_boot_file): zero out the boot file name
  record before writing the name in.  Previously, there was a misplaced
  null-terminator that caused gcc to complain.
* libparted/filesys.c (ped_file_system_resize, ped_file_system_copy):
  only attempt to check file systems if checking is implemented for
  that file system type.
* libparted/fs_fat/bootsector.c (fat_boot_sector_analyse): when correcting
  the boot sector, use fat_boot_sector_write() to make sure the backup
  copy gets written (if applicable).
* libparted/disk_dos.c (msdos_probe): don't treat Smart Boot Manager Loader
  boot blocks as FAT file systems.
* libparted/disk_dos.c: Added support for the prep-boot partition type.

Cheers,
Andrew