Update Images

change font (1m-9m & Jihai)
 MS-Mincho to IPA-Mincho
divided to parts of script in tenpai.html

mjcommon.js ... common mahjong code
shanten.js ... count 'SHANTEN' code
Update some files

shangen.js
  add: show shanten/tenpai/hora

tenpai.html
  change function EL
fix bug in tenpai.html

change function EL
 error in FireFox & Opera
Update tenpai.html

change title
Update README.md

fix Original Image Link.