* Add migration
* Migrator: Extend support to rename columns
* Fix getting current key
* Fix column name in migration
* Fix deks reencryption
* Fix caching
* Add back separate caches for byName and byPrefix
* Do not concatenate prefix with uid
* Rename DataKey struc fields
* SQLStore: Add deprecation comments for breaking migrations
* Add comment
* Minor corrections
Co-authored-by: Joan López de la Franca Beltran <joanjan14@gmail.com>