Merge r726109, r733465, r733467, r733695 from trunk:

mod_ssl: Make the size of the per-dir-reneg request-body buffer
configurable, by popular demand:

* modules/ssl/ssl_private.h: Define DEFAULT_RENEG_BUFFER_SIZE.
  (SSLDirConfigRec): Add nRenegBufferSize field.

* modules/ssl/ssl_engine_config.c (ssl_cmd_SSLRenegBufferSize): New
  function.
  (ssl_config_perdir_create, ssl_config_perdir_merge): Handle
  nRenegBufferSize.

* modules/ssl/ssl_engine_io.c (ssl_io_buffer_fill): Take max buffer
  size as an argument rather than compile-time constant.

* modules/ssl/ssl_engine_kernel.c (ssl_hook_Access): Pass
  nRenegBufferSize to ssl_io_buffer_fill.

* modules/ssl/mod_ssl.c (ssl_config_cmds): Add SSLRenegBufferSize.

PR: 39243


* Correctly merge SSLRenegBufferSize directive.

PR: 46508
Submitted by: <tlhackque yahoo.com>
Reviewed by: rpluem, jorton, pgollucci

* Add a stub documentation for SSLRenegBufferSize.


* docs/manual/mod/mod_ssl.xml: Flesh out SSLRenegBufferSize
 docs a little - thanks rpluem!



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@739605 13f79535-47bb-0310-9956-ffa450edef68