v2.0.2

use absolute redis path on macOS, rm useless try except

v2.0.1

shutdown redis server after all books are parsed

v2.0.0

replace sqlite3 with redis

v1.8.1

use byte string for KFX books

v1.8.0

search lemma in multiple threads

v1.7.1

always update EXTH header

v1.7.0

fetch ASIN from Amazon and update MOBI EXTF header

v1.6.1

remove lemmatize button

extract zip file in job thread to avoid blocking calibre main thread
add 454 lemmas

v1.6.0

- only match words have at least three characters

- lemmatize words

v1.5.1

delete redundant return values