even more important testing by Colin.
* Makefile.util.def (libgrubmods.a): Add crc.c and gzio.c
* grub-core/Makefile.core.def (btrfs): Add crc.c.
* grub-core/fs/btrfs.c: Stub replaced with real implementation.
* grub-core/io/gzio.c (grub_gzio): New fields mem_input_size,
mem_input_off and mem_input. All users updated to accept in-RAM input.
(gzio_seek): New function.
(test_zlib_header): Likewise.
(grub_gzio_read): Likewise.
(grub_zlib_decompress): Likewise.
* grub-core/kern/emu/getroot.c (grub_find_root_device_from_mountinfo):
Accept partial and non-virtual mounts.
(grub_guess_root_device): Do rescanning after device_from_mountinfo to
avoid receiving /dev/dm-X as device.
* grub-core/kern/emu/misc.c (grub_make_system_path_relative_to_its_root):
Handle bind and partial mounts.
* grub-core/lib/crc.c: New file.
* include/grub/deflate.h: Likewise.
* include/grub/emu/misc.h (grub_find_root_device_from_mountinfo): New
proto.
* include/grub/lib/crc.h: New file.
* grub-core/normal/menu_entry.c (per_term_screen): New member
num_entries.
(print_down): Use num_entries.
(update_screen): Likewise.
(grub_menu_entry_run): Set num_entries.
* grub-core/normal/menu_text.c (menu_viewer_data): New member
num_entries.
(grub_print_message_indented): Move real part to ...
(grub_print_message_indented_real): ... here. Additional argument
dry_run.
(draw_border): Additional argument num_entries.
(print_message): Additional argument dry_run.
(print_entries): Receive menu viewer data.
(grub_menu_init_page): New argment num_entries.
(menu_text_set_chosen_entry): Use num_entries.
(grub_menu_try_text): Likewise.
* grub-core/normal/term.c (print_ucs4_terminal): New argument dry_run.
All users updated.
(grub_ucs4_count_lines): New function.
* include/grub/term.h (grub_term_cursor_x): Moved from here ..
* grub-core/normal/menu_text.c (grub_term_cursor_x): ... to here.
* include/grub/term.h (GRUB_TERM_MESSAGE_HEIGHT): Removed.
(grub_term_border_height): Likewise.
(grub_term_num_entries): Likewise.
build system.
(Getting started): GRUB is developed in Bazaar now, not Subversion.
(Comment): Fix typo.
(Getting started): General copy-editing.
(Typical Development Experience): Likewise.
(Error Handling): Likewise.
(Video API): Likewise.
const.
* util/grub-setup.c (main): Reuse md device name if available.
* util/raid.c (grub_util_raid_getmembers): Receive device name and
not GRUB name as argument.
Based on patch by: Florian Wagner <fwagner>.
