SPDY: avoid sending RST_STREAM on WINDOW_UPDATE with unknown SID. There's a race condition between closing a stream by one endpoint and sending a WINDOW_UPDATE frame by another. So it would be better to just skip such frames for unknown streams, like is already done for the DATA frames.

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.