File Release Notes and Changelog

Release Name: 2.5.9

Notes:
This release fixes a potential DoS vulnerability discovered
by "Internet Security Auditors" when parsing multipart 
requests.  Additionally, the release cleans up the build 
process and adds a few features, including atomic updates of 
persistent counters and macro expansion of the append/prepend 
actions.  It is highly recommended to upgrade to this release.

NOTE: A pre-released copy of 2.5.9 was inadvertently 
uploaded.  If you downloaded prior to 11 March 2009 at 23:25 
PDT, then you may have the wrong version and should verify.  
These versions only differed in documentation, however.

Changes: * Fixed parsing multipart content with a missing part header name which would crash Apache. Discovered by "Internet Security Auditors" (isecauditors.com). * Added ability to specify the config script directly using --with-apr and --with-apu. * Updated copyright year to 2009. * Added macro expansion for append/prepend action. * Fixed race condition in concurrent updates of persistent counters. Updates are now atomic. * Cleaned up build, adding an option for verbose configure output and making the mlogc build more portable.