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Constify + save a few bytes in conf pool

Save a few bytes in conf pool when processing 'AllowOverrideList'.

The 'override_list' table is allocated from the cmd->pool, just as all strings from argv[].
So there is no need to duplicate them.

+ some minor style issues

Save a few bytes in conf pool
Submitted by: jailletc36
Reviewed/backported by: jim


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mod_ssl: forward EOR (only) brigades to the core_output_filter().

mod_ssl: don't FLUSH output (blocking) on read.
This defeats deferred write (and pipelining), eg. check_pipeline() is not
expecting the pipe to be flushed under it.
So let OpenSSL >= 0.9.8m issue the flush when necessary (earlier versions
are known to not handle all the cases, so we keep flushing with those).


mod_ssl: follow up to r1705823.
Oups, every #if needs a #endif...

mod_ssl: pass through metadata buckets untouched in ssl_io_filter_output(),
the core output filter needs them.

Proposed by: jorton


mod_ssl: follow up to r1705194, r1705823, r1705826 and r1705828.
Add CHANGES entry, and restore ap_process_request_after_handler()'s comment
as prior to r1705194 (the change makes no sense now).


mod_ssl: follow up to r1705823.
We still need to flush in the middle of a SSL/TLS handshake.


mod_ssl: follow up to r1705823.
Flush SSL/TLS handshake data when writing (instead of before reading),
and only when necessary (openssl < 0.9.8m or proxy/client side).


mod_ssl: follow up to r1707230: fix (inverted) logic for SSL_in_connect_init().

Submitted by: ylavic
Reviewed/backported by: jim


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alignment (SPARC64, PPC64).
Submitted by: ylavic
Reviewed by: jim, minfrin


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           fields as described in RFC7230. See OWS definition.
Submitted by: jailletc36
Reviewed by: ylavic, minfrin


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Make the fix for fully qualifying REDIRECT_URL from PR#57785 opt-in. 




followup to r1710380 -- refactored name and didn't have 'make depend'


Submitted by: covener
Reviewed/backported by: jim


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PR 53845: Remove commented config regarding DNT because the spec now has CR status (confirming our interpretation) and MS has committed to changing their implementation: http://blogs.microsoft.com/on-the-issues/2015/04/03/an-update-on-microsofts-approach-to-do-not-track/
Submitted by: fielding
Reviewed/backported by: jim


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ssl variables in any expression using
mod_rewrite syntax "%{SSL:VARNAME}" or function
syntax "ssl(VARNAME)".

Backport of r1707002 and r1709596 from trunk.

Committed By: rjung
Backported By: rjung
Reviewed by: rjung, ylavic, sf


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