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    take care of some MaxRanges feedback:
     * allow "none" to be expressed in config
     * stop accepting confusing/ambiguous "0", start accepting "unlimited".

Reviewed By: covener, wrowe, rpluem



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* Do not even sent an empty brigade down the filter chain if the headers
  have not been sent by the AJP server so far. Even an empty brigade
  will trigger the headers filter to create the (in this case incomplete)
  HTTP headers of the response.

PR: 51608
Submitted by: rpluem
Reviewed by: rpluem, jim, jfclere


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END_REPONSE packets.

Backport of r1152379 from trunk.


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Fix segfault and log proper error message if apr DBM driver cannot be loaded.

PR: 51751
Reviewed by: sf, trawick, rpluem


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be explicit that REQUEST_URI is the path component only
(like r->uri)



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Prevent a crash if a non-existent internal RewriteMap is specified
in a server context with RewiteEngine off, then later referenced.

Submitted By: Ben Noordhuis
Reviewed By: covener, sf, trawick



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in the ProxyPass doc.


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Add MaxRanges directive and limit # of accepted ranges to 200 by default.

Submitted By: Eric Covener, Guenter Knauf
Reviewed By: covener, fuankg, sf



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