- added method BOOTINSTALL, for an architecture to optionally install a
bootblock in the miniroot (this works for Amiga)
- added Amiga keymap directories
- removed the subdir selection from mount_local_disk() and mount_nfs(), and
the remains from mount_cdrom(), as all are handled now by the subdir
navigator in mount_from_installed_fs()
Note:
- `list' was more-or-less arbitrarily split into MD & MI parts.
- the `crunch' configuration file is generated from `list's
with the `makeconf' awk-script.
- Makefile assumes there's a `../<arch>/miniroot' directory with
MI configuration files.