Turn on OPENSSL_NO_DEPRECATED by default.
Also introduce OPENSSL_USE_DEPRECATED. If OPENSSL_NO_DEPRECATED is
defined at config stage then OPENSSL_USE_DEPRECATED has no effect -
deprecated functions are not available.
If OPENSSL_NO_DEPRECATED is not defined at config stage then
applications must define OPENSSL_USE_DEPRECATED in order to access
deprecated functions.
Also introduce compiler warnings for gcc for applications using
deprecated functions

Reviewed-by: Rich Salz <rsalz@openssl.org>
Remove redundant OPENSSL_NO_DEPRECATED suppression

Reviewed-by: Rich Salz <rsalz@openssl.org>
Change all instances of OPENSSL_NO_DEPRECATED to OPENSSL_USE_DEPRECATED
Introduce use of DECLARE_DEPRECATED

Reviewed-by: Rich Salz <rsalz@openssl.org>
make update following changes to default config settings

Reviewed-by: Rich Salz <rsalz@openssl.org>
Update CHANGES for deprecated updates

Reviewed-by: Rich Salz <rsalz@openssl.org>
Made it an error to define OPENSSL_USE_DEPRECATED if OpenSSL has been built
with OPENSSL_NO_DEPRECATED defined

Reviewed-by: Rich Salz <rsalz@openssl.org>