updated openssl version to latest; removed obsolete link to openssl patch...

   environment variables, for example:

     set ZLIB_PATH=c:\zlib-1.2.3

     set OPENSSL_PATH=c:\openssl-0.9.8g

     set LIBSSH2_PATH=c:\libssh2-0.17

     set OPENSSL_PATH=c:\openssl-0.9.8k

     set LIBSSH2_PATH=c:\libssh2-1.1

   ATTENTION: if you want to build with libssh2 support you have to use latest

   version 0.17 - previous versions will NOT work with 7.17.0 and later!

   Before running nmake define the OPENSSL_PATH environment variable with

   the root/base directory of OpenSSL, for example:

     set OPENSSL_PATH=c:\openssl-0.9.8g

     set OPENSSL_PATH=c:\openssl-0.9.8k

   Then run 'nmake vc-ssl' or 'nmake vc-ssl-dll' in curl's root

   directory.  'nmake vc-ssl' will create a libcurl static and dynamic

   - optional OpenSSL sources (version 0.9.8 or later build with BSD sockets);

     you can find precompiled packages at:

     http://www.gknw.net/development/ossl/netware/

     for CLIB-based builds OpenSSL needs to be patched to build with BSD

     sockets (currently only a winsock-based CLIB build is supported):

     http://www.gknw.net/development/ossl/netware/patches/v_0.9.8g/openssl-0.9.8g.diff

     for CLIB-based builds OpenSSL 0.9.8h or later is required  - earlier versions

     dont support buildunf with CLIB BSD sockets.

   - optional SSH2 sources (version 0.17 or later);

   Set a search path to your compiler, linker and tools; on Linux make