Request body: improved logging. Added logging before returning NGX_HTTP_INTERNAL_SERVER_ERROR if there are busy buffers after a request body flush. This should never happen with current code, though bugs can be introduced by 3rd party modules. Make sure debugging will be easy enough.

make -f misc/GNUmakefile release

the required tools:
*) xsltproc to build CHANGES,
*) xslscript.pl ( http://hg.nginx.org/xslscript ) to build XSLTs
   from XSLScript sources.


make -f misc/GNUmakefile icons

the required tool:
*) netpbm to create Win32 icons from xpm sources.