Features
- add -preview-width option to limit char width of preview (#88) (4714de1)
- contrib: resize images in wofi script to make them clearly visible (#105) (05d29dc)
- contrib: use "magick" instead of "convert" (#104) (c164c4c)
- make db path configurable (flag / env var / config file) (19ef90e), closes #91
- support configuration via env var or config file (#90) (08ee1fb)