Bump version to 1.4.6

Bump version, release v1.4.5

Bump version, release v1.4.4

Bump version, release v1.4.3

Release v1.4.2

Bump version, release v1.4.1

Revert "Sync deprecated channels to redis set"

This reverts commit f7280a6.

Add support for persisting channels & messages

Also add publishing options documentation to README

Add client support for marking channel as deprecated

Add support for specifying deprecated channels in config