Rejson

Changes

- pinning redis to 3.5.3 and updating minor version (68)
- Adding deprecation notice (66)
- Python 3.10 support and trove (63)
- JSON.TOGGLE and JSON.CLEAR (55)
- fixes issues 44 45 setDecoder not working, TypeError when reJSON returns None (46)
- remove unused MODULE_INFO (36)

* 28 30 Use io.open() and 'utf-8' to read description

* Use io.open() and 'utf-8' encoding to read version

* 26 Fixing retrieving non-ascii string with JSON.GET, added no_escape flag

* Add exception handler for .jsonget for non-existent keys