Sync with txtai 8.0 API, closes #35

Sync with txtai 7.5 API, closes #34

Sync with txtai 7.4 API, closes #33

Sync with txtai 7.3 API, closes #32

Sync with txtai 7.2 API, closes #31

Sync with txtai 7.1 API, closes #30

Bump version, closes #29

Sync with txtai 7.0 API, closes #28

Add support for authorization headers, closes #27

Sync with txtai 6.2 API, closes #26