Rewrite README in the style of my other packages
Fix typo in README
Bump version to 0.2.1 for GNU ELPA
Assign copyright to the FSF
Relicense face-shift under GPL-3
Increase default face-shift-intensity value
Replace use-package with setup
Lower minimal version to 24.1
Remove subr-x dependency
Remove cl-lib dependency
Remove font-lock faces from face-shift-faces
Update face-shift-shifts
Generalize face-shift-intensity type
Update face-shift documentation
Add face-shift-shift-foreground option