SECURITY (CVE-2011-3368): Prevent unintended pattern expansion in some
reverse proxy configurations by strictly validating the request-URI:

* server/protocol.c (read_request_line): Send a 400 response if the
  request-URI does not match the grammar from RFC 2616.  This ensures
  the input string for RewriteRule et al really is an absolute path.

Reviewed by: jim, covener, rjung


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* docs/manual: add note here in light of CVE-2011-3368

- add a security warning, and tweak the example, in light of CVE-2011-3368



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No need to fix trunk, the code is no
longer present there.


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"MaxRanges 0" semantics and new MaxRanges
string options in default configuration snippet.

Hope that's CTR because the setting is commented
out by default.


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    byterange: Range of '0-' returns 206

Submitted by: Jim Jagielski
Reviewed by: jim, rpluem, rjung, sf


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