SSL: stop accessing SSL_SESSION's fields directly. SSL_SESSION struct is internal part of the OpenSSL library and it's fields should be accessed via API (when exposed), not directly. The unfortunate side-effect of this change is that we're losing reference count that used to be printed at the debug log level, but this seems to be an acceptable trade-off. Almost fixes build with -DOPENSSL_NO_SSL_INTERN. Signed-off-by: Piotr Sikora <piotr@cloudflare.com>

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.