Use https protocol for llvm repository in fasttest

Use experimental pass manager by default in clang

[RFC] Significantly reduce memory usage in AggregatingInOrderTransform

* Docs for the bayesAB function, english.

* Note edited.
Co-authored-by: NOlga Revyakina <revolg@yandex-team.ru>

Fix codebrowser image

Fix binary build cmake flags forwarding

Add setting `output_format_pretty_row_numbers`

Check MADV_DONTNEED (for jemalloc), maybe broken under qemu

Use default implemetation for constants in JSON* functions

Improve quantileTDigest performance

jemalloc relies on working MADV_DONTNEED (that fact that after
madvise(MADV_DONTNEED) returns success, after subsequent access to those
pages they will be zeroed).
However qemu does not support this, yet [1], and you can get very tricky
assert if you will run clickhouse-server under qemu:

    <jemalloc>: ../contrib/jemalloc/src/extent.c:1195: Failed assertion: "p[i] == 0"

  [1]: https://patchwork.kernel.org/patch/10576637/

But after this patch you will get pretty error:

  $ qemu-x86_64-static programs/clickhouse
  MADV_DONTNEED does not zeroed page. jemalloc will be broken

Pass through *_for_user settings via Distributed with cluster-secure

DOCSUP-2402: Document the formatRow function

Fix bug in queries like SELECT toStartOfDay(today())