Reword CHANGES entry for _old_des_..., as it was a little complicated

     symbols to the corresponding _old_des_*.

     All this is done because there are increasing clashes with libdes

     and other des libraries that are currently used by other projects.

     For now, the old libdes interface is provided, as well as crypt(),

     unless OPENSSL_NO_OLD_DES_SUPPORT is defined, or if openssl/des_old.h

     is included.  Note that crypt() is no longer declared in openssl/des.h.

     and other DES libraries that are currently used by other projects.

     The old libdes interface (including crypt()) is provided if

     <openssl/des_old.h> is included.  For now, this automatically

     happens in <openssl/des.h> unless OPENSSL_NO_OLD_DES_SUPPORT is

     defined.  Note that crypt() is no longer declared in <openssl/des.h>.

     NOTE: This is a major break of an old API into a new one.  Software

     authors are encouraged to switch to the DES_ style functions.  Some