convert_{cangjie,jyutping,mandarin,variants}.py
converts data from various sources to *.js
that can be included in Web pages.
libcangjie-table.txt is from https://github.com/Cangjians/libcangjie/blob/master/data/table.txt
Unihan_Readings.txt is from http://unicode.org/Public/UNIDATA/Unihan.zip
Unihan_Variants.txt is from http://unicode.org/Public/UNIDATA/Unihan.zip