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Output -M and -S dumps (modules and vhosts) to stdout instead of stderr.

Submitted by: Dan Poirier <poirier pobox.com>
Reviewed by: rederpj, covener, rpluem


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When an expires or cache-control header are sent, the RFC does allow us to cache normally non-cacheable response statuses.
Submitted by: Alex Polvi <alex polvi.net>



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Grammar fixes

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Translated by: Nilgün Belma Bugüner <nilgun belgeler.org>
Reviewed by:  Orhan Berent <berent belgeler.org>

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* Avoid sending no answer at all if a custom error page causes an
  AP_FILTER_ERROR.

* allow ap_invoke_handler() to pass-through AP_FILTER_ERROR as if it were
  a reserved status code (OK/DECLINED/SUSPENDED). Prevents ap_die() from seeing a
  500 error when the http header filter has already taken care of the proper
  error response

* To be safe, consume the entire brigade after processing an error bucket in
  the HTTP output filter.



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Admonish people not to put "AllowOverride All" in <Directory /> and
expect it to do anything useful.

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* Enable the use of autoconf >= 2.62 without causing APR / APR-UTIL options
  passed to the configure script issue warnings about unknown options.

Submitted by: rpluem
Reviewed by: rpluem, pquerna, tdonovan


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Tested with autoconf 2.59 (before problem) and 2.62 (after)


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(discussion moved to dev@httpd)



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configure: Don't reject libtool 2.x
PR 44817


Revert unintentional changes in r657354

Reviewed/backported by: jim


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