Documentation: HOWTO-ja_JP-sync patch

Here is a patch for Documentation/ja_JP/HOWTO sync with latest
Documentation/HOWTO.
It includes translation of changes done by Jon Corbet,Jiri Pirko and me:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=Documentation/HOWTO;h=c2371c5a98f99b5eaa785bd0affd6c40187e84e3;hb=HEAD

Singed-off-by: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>