Renamed "img" to "raw", because "img" was a poor name for raw images.
renamed:    build-steps.d/1300_create-debian-img -> build-steps.d/1300_create-debian-raw
renamed:    build-steps.d/1400_backup-img-after-grml-debootstrap -> build-steps.d/1400_backup-raw-after-grml-debootstrap
renamed:    build-steps.d/1800_backup-img-after-meta-package-install -> build-steps.d/1800_backup-raw-after-meta-package-install
renamed:    build-steps.d/2400_convert-img-to-qcow2 -> build-steps.d/2400_convert-raw-to-qcow2
renamed:    build-steps.d/2500_convert-img-to-vdi -> build-steps.d/2500_convert-raw-to-vdi
renamed:    help-steps/chroot-img -> help-steps/chroot-raw
renamed:    help-steps/mount-img -> help-steps/mount-raw
renamed:    help-steps/unchroot-img -> help-steps/unchroot-raw
renamed:    help-steps/unmount-img -> help-steps/unmount-raw
renamed:    help-steps/unmount-img-force -> help-steps/unmount-raw-force