reiser4: metadata checksums

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#	Subject and files	Size	Replies
1/3	reiser4: add metadata checksums support`fs/reiser4/Makefile` `fs/reiser4/checksum.c` `fs/reiser4/checksum.h` +9 more	+130 ~~-13~~	0 replies
1/3	reiser4progs: add metadata checksums support`include/aux/crc32c.h` `libaux/Makefile.am` `libaux/crc32c.c` +1 more	+133 -3	0 replies
2/3	reiser4: fixup status writes`fs/reiser4/status_flags.c`	+1 -0	0 replies
2/3	reiser4progs: make gcc happy`demos/trunc.c` `include/reiser4/plugin.h` `libreiser4/pset.c` +15 more	+37 ~~-57~~	0 replies
3/3	reiser4: release format 4.0.1`fs/reiser4/plugin/disk_format/disk_format40.c` `fs/reiser4/plugin/node/node.h` `fs/reiser4/plugin/plugin.h` +1 more	+33 ~~-22~~	0 replies
3/3	reiser4progs: release format 4.0.1`ChangeLog` `configure.in` `include/aux/Makefile.am` +9 more	+43 ~~-38~~	0 replies

No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.

Cover letter [PATCH 0/3] reiser4progs: metadata checksums

This patch series is against reiser4progs-1.0.9-add-node41-support.patch Find at: http://sourceforge.net/projects/reiser4/files/patches/
Can be easily forward ported to more fresh stuff.

NOTE: The patched package provides utilities of format release number 4.0.1.
WARNING: For testing only!!!