(chise-wiki-bitmap-glyphs-url): Use http://www.chise.org/glyphs

(chise-wiki-bitmap-glyphs-url): Use chise.org/glyphs
instead of http://chise.zinbun.kyoto-u.ac.jp/glyphs.
(chise-wiki-glyph-cgi-url): Use
http://www.chise.org/chisewiki/glyph.cgi instead of
http://chise.zinbun.kyoto-u.ac.jp/chisewiki/glyph.cgi.
(www-uri-make-object-url): New function.
(www-format-char-img-style): New variable.
(www-format-encode-string):
- Add new optional argument `as-body'; if it is specified, "&" is
  encoded to "&".
- Specify style of <img> tags.