* Another fix for exim workaround (#637)
* Fix unencrypted passwords processing in the controller
* Fix setting path for lua (#652)
* Fix usage of rdns reply structure (#654)
* Use file lock in logger to avoid deadlocks
* Add `application/octet-stream` mime type for `pdf` extension (by @moisseev)
* Implement new automata to skip empty lines for dkim signing (#651)
* Fix parsing of missing classes
* Clarify some rspamc arguments (by @fatalbanana)
* Correct suppress spelling

Signed-off-by: Vsevolod Stakhov <vsevolod@highsecure.ru>

Issue: #651
Reported by: @FelixSchwarz

The `application/octet-stream` mime type is commonly used  for `pdf` files by variety of automated mailing systems.

Issue: #654
Reported by: @AlexeySa

Issue: #652
Reported by: @vurgun

Reported by: @kvaps

Issue: #637
Reported by: @FelixSchwarz

* Slightly reduce weights of rules with high FP rate
* Add workround for rspamd-1.3
* Fix possible FP in TRACKER_ID rule
* Simplify MISSING_MIMEOLE rule
* Add workaround for gmime CTE stupidity
* Fix mime headers processing
* Fix false positive URL detections in text parts
* Fix Exim shutdown patch
* Enable workaround for exim mailbox format
* Backport shingles static test
* Fix levenshtein distance calculations
* Fix max_train setup in ANN module
* Fix redis structure by adding {NULL, NULL} member
* Fix build with unmodified LibreSSL opensslv.h
* Repair optional dependencies
* Really skip filters in case of pre-result set
* Restore the intended pre-filters behaviour
* Fix ipv6 mask application

Signed-off-by: Vsevolod Stakhov <vsevolod@highsecure.ru>

Issue: #634
Reported by: @AdUser

[Rspamd 1.2] [Fix] Fix Exim shutdown patch

Issue: #609
Reported by: @moisseev

Add test for LibreSSL to use "old" methods when OPENSSL_VERSION_NUMBER is 0x20000000L

This reverts commit 36bccebd24.

Previously, filters and post-filters were checked even if pre-filter has
set some result. Now pre-result efficienly makes a trapdoor to writing
reply (as it was before 1.0).

* Fix parsing of URLs in texts
* Fix creating of URLs from LUA
* Fix some more URL detector issues
* Fix unit tests
* Fix JIT compilation for PCRE2 expressions
* Fix JIT usage for PCRE2
* Fix UTF8 mode in PCRE2
* Add workaround for pre-historic compilers (#605)
* Fix and rescore R_PARTS_DIFFER logic
* Properly set lua paths for tests
* Fix SA rawbody processing - exclude top part
* Store text parts content with newlines stripped
* Properly support SA body regexps
* Fix body rules in SA plugin
* Fix setting of score for parts differ
* More fixes to parts distance calculations
    - Use hashed words instead of full words for speed
    - Improve levenstein distance calculations and penalise replaces
    - Always return number from 0 to 1
    - Use g_malloc instead of alloca
* Fix percents output in R_PARTS_DIFFER
* Plug memory leak in dkim module
* Plug minor memory leak in regexps creation

Signed-off-by: Vsevolod Stakhov <vsevolod@highsecure.ru>

- Use hashed words instead of full words for speed
- Improve levenstein distance calculations and penalise replaces
- Always return number from 0 to 1
- Use g_malloc instead of alloca