mod_dav: Fix PR 55306.

Makes mod_dav no longer require that the lock token be provided when the
source of a COPY is locked.  The prior behavior was in violating of
RFC 4918 which says that the lock token is only required on resources
that may be modified by the method.

* modules/dav/main/mod_dav.h
  (DAV_VALIDATE_NO_MODIFY): New flag to be passed to dav_validate_* functions.

* modules/dav/main/mod_dav.c
  (dav_method_copymove): Use the new flag when calling dav_validate_request()
    on the COPY source.

* modules/dav/main/util.c
  (dav_validate_resource_state): Use the flag to decide to ignore if the lock
    token is not provided.

Submitted by: breser
Reviewed/backported by: jim


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Merge r834378, r835046, r1040304, r1040373, r1090645, r1294306, r1509872, r1308862, r1509875 from trunk:

enable support for ECC keys and ECDH ciphers.  Tested against
OpenSSL 1.0.0b3.  [Vipul Gupta vipul.gupta sun.com, Sander Temme]


* Use correct #ifndef's to compile again on openssl 0.9.8 and fix compiler
  warnings.

Noted by: sf


Removed unused var.


Stop warning, init should be an int.


Remove unused variable


Initialize EC temporary key on server startup, as for DH and
RSA. This fixes a race condition that could lead to a crash with threaded
MPMs.


Mention ECC support

Submitted by: sctemme, rpluem, fuankg, drh, sf, sf, sf, jim, sf
Reviewed/backported by: jim


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  All proposed patch sets look smart, all but one cure regressions,
  and ECC support seems overdue and looks minimalistic/clean.

  Voted and all promoted.



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Interpolation worked within the scheme portion of URLs for
ProxyPass and ProxyPassReverse until a fix to apr_uri_parse()
in APR-Util 1.5.2 closed the hole that had previously allowed
the necessary {} characters within the scheme.

Lack of support for interpolation within the scheme will be a
permanent limitation.

The mod_proxy documentation is updated to provide an alternate
configuration solution.

PR: 55315
Submitted by: Mike Rumph <mike.rumph oracle.com>
Tweaked by: trawick


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Fix bug #55304 with the provided patch, slightly reformatted.

In short: do not validate conditions of a COPY source's parent since
it is not modified during the operation.

* modules/dav/main/mod_dav.c:
  (dav_method_copymove): adjust params to dav_validate_request()

PR: 55304
Submitted by: breser
Reviewed by: gstein, wrowe, rpluem


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* modules/ssl/ssl_engine_kernel.c (ssl_hook_ReadReq): Compare SNI
  hostname against Host header case-insensitively.

PR: 49491
Submitted by: Mayank Agrawal <magrawal.08 gmail.com>
Reviewed by: rpluem, trawick, covener


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

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  Be more clever when allocating memory for log item to be escaped.
  This should be faster and save about 70-100 bytes in the request pool with the default config.

Reviewed by: minfrin, rjung, rpluem


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    Change default for SSLCompression to off, as compression
    causes security issues in most setups

Reviewed by sf, fuankg, rjung


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add a note that proxy environment variables are either set or unset, 
unless specific values are listed.



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1-arg SetEnv is valid

http://httpd.apache.org/docs/2.2/mod/mod_proxy_http.html#comment_1528




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