https://gerrit.wikimedia.org/r/#/c/184218/
PLEASE merge it if possible
The Chinese conversion table is substantially updated to fix a lot of bugs reported in recent years, and the script generating conversion table (LanguageZh.php) is also modified to facilitate the maintenance.
Zh-sg and zh-my are set to fallback to zh-cn to improve reading experience, since there is only trivial difference among them, just like zh-hk and zh-mo. Further optimization for zh-sg and zh-my will be performed in local conversion table of Chinese WikiProjects.
Site request from: https://zh.wikipedia.org/wiki/Wikipedia:%E5%AD%97%E8%AF%8D%E8%BD%AC%E6%8D%A2/%E4%BF%AE%E5%A4%8D%E8%AF%B7%E6%B1%82