Upstream: even better handling of invalid headers in cache files. When parsing of headers in a cache file fails, already parsed headers need to be cleared, and protocol state needs to be reinitialized. To do so, u->request_sent is now set to ensure ngx_http_upstream_reinit() will be called. This change complements improvements in 46ddff109e72.

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.