Release 1.4.3

* [CritFix] Backport PTR_ARRAY_FOREACH fix
* [CritFix] Fix descriptors leak on reload
* [Feature] Add `caseless_hash` method to `lua_util`
* [Feature] Use t1ha for hashes, allow inlining
* [Feature] Use t1ha instead of metrohash and xxhash32
* [Fix] Another try to fix descriptors leak
* [Fix] Another try to fix reload and logger
* [Fix] Avoid extensive reallocs
* [Fix] Avoid race condition on saving cache and reload
* [Fix] Backport redis pool fixes from master
* [Fix] Break pool connection on fatal redis errors
* [Fix] Fix argument returned on redis backend errors
* [Fix] Fix errors handling in fuzzy backend initialization
* [Fix] Fix race condition in SIGUSR2 handler
* [Fix] Fix reload and hyperscan ready event
* [Fix] More fixes to logger initialization
* [Fix] Plug memory leak in learning fuzzy storage
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