1.5.5

Release 1.5.5

* [CritFix] Fix classifier learning with Redis backend
* [CritFix] Fix issue when parsing encoded rfc822/messages
* [Feature] Add escaped version of lua_ucl import
* [Feature] Add task:headers_foreach function
* [Feature] Allow to process filenames from content type
* [Feature] Allow to query hashed emails
* [Feature] Ignore bayes with mostly metatokens or with too few text
* [Feature] Probabilistically skip metatokens
* [Feature] Retrieve all virus names from SAVAPI
* [Feature] Rework classifiers lua metatokens
* [Feature] Store headers order
* [Feature] Store text tokens inside bayes tokens
* [Feature] Use cached shingles keys
* [Fix] Add missing score normalisation for HFILTER_URL_ONLY
* [Fix] Avoid lookup in absent hash
* [Fix] Check return values from Lua functions called from C
* [Fix] Do not count sending and loading time in rspamc
* [Fix] Escape json strings for controller rejplies from Lua
* [Fix] Fix archive scans for savapi
* [Fix] Fix domain_only emails RBL
* [Fix] Fix ip_score map configuration
* [Fix] Fix JSON output for history_redis
* [Fix] Fix one character length substrings search
* [Fix] Fix parsing of non-RFC compatible Exim received
* [Fix] Fix parsing of options for workers with the same type
* [Fix] Fix processing of small tokens vectors
* [Fix] Fix rfc2047 tokenization
* [Fix] Fix typo
* [Fix] More fixes for inplace decoding
* [Fix] Try to avoid modifications of the original data
* [Fix] URL redirector: Fix call to is_redirector
* [Rework] Set token data as uint64_t instead of chars array
* [WebUI] Check if neighbours' history backend versions match
* [WebUI] Disable phrase connectors replacement in history filtering
* [WebUI] Disable phrase connectors replacement in symbols filtering
* [WebUI] Do not hide messages with bad subject, just replace it with '???'
* [WebUI] Fix error message
* [WebUI] Fix history v2 display
* [WebUI] Fix legacy history
* [WebUI] history: break To address lists on commas
* [WebUI] Increase default timeout to 20 seconds
* [WebUI] Save some history table space
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