HTTP/2: fixed send timer handling. Checking for return value of c->send_chain() isn't sufficient since there are data can be left in the SSL buffer. Now the wew->ready flag is used instead. In particular, this fixed a connection leak in cases when all streams were closed, but there's still some data to be sent in the SSL buffer and the client forgot about the connection.

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.