Log Message:
updated to 2003-05-29 version.  noted by Hiroshi Fujishima.
full change log is available in its WWW page.

[2003-05-29] use bold face in a heading even if a bold keyword is not
specified when using OTF package by Saitou Syuuzaburou. Also use ruby
font for \ruby in okumakuro.sty when export keyword is specified.

[2003-05-17] output pagesize special of dvipdfm(x) too with papersize
option.  It makes page size is auto-specified when making a PDF file.
Also page size is increased by 2 inches when register mark is used to
avoid the mark at right side of the page is not seen in preview.

[2003-04-29] introduced vartwoside option to jsbook class  which layouts
headers to like twoside and bodies like oneside.  \marginpar is always
located to right page.  thanks to: tonny-san, sippo-aikouka-san.

[2003-04-18] jsclasses is now distrebuted in ISO-2022-JP encoding to
avoid troubles which caused by Shift JIS encoding used previous. No
code-conversion should be needed in any OS.  While the archive is now in
ZIP form.  LZH form is also available.

[2003-03-16, updated] Re-introduced the workaround of the [2001-04-26]
which was removed as a part of the [2003-03-16] change.  the workaround
had the merit that an italic font was not selected in newtheorem without
amsthm.