Release 3.8.0

Release 3.8.0

* [Project] Rspamadm fuzzyping command
* [Project] Use Redis scripts for Bayes statistics and cache
* [Project] Support  JSON logging
* [CritFix] - Fix reported length of logging structure
* [Feature] Allow to set `max_users` for Redis bayes backend
* [Feature] Escape JSON when needed
* [Feature] Proxy: Allow `encrypted_only` option
* [Feature] Reiterate on gtube patterns
* [Feature] Support ping command in fuzzy storage
* [Feature] Support suppressing DMARC reporting for particular recipients
* [Feature] rbl: support disabling or replacing url_whitelist per RBL
* [Fix] Another try to fix setproctitle
* [Fix] Cleanup session on exit
* [Fix] Do not cleanup hyperscan files unless new ones are loaded
* [Fix] Fix bad access when printing pending events on failure path
* [Fix] Fix issues with the raw header on header insertion/modification
* [Fix] Fix overflow in fuzzy_stats command
* [Fix] Fix some corner cases when parsing maps with no newlines
* [Fix] Fix various issues with canonicalisation of the paths
* [Fix] Fix wrong raw_len usage
* [Fix] Make words selection random deterministic upon content
* [Fix] Properly set config field when creating tasks from Lua
* [Fix] Really fix the language detector statistical heuristic
* [Fix] Set loaded variable explicitly
* [Fix] dkim_signing: siging_table: lowercase before lookup
* [Fix] known_senders: fix config handling
* [Fix] rbl: fix `exclude_local`