eay licence, as module is practically rewritten from scratch [well,
even original submission was obviously "almost, but not quite,
entirely unlike" any other eay *_cfb.c module, not to mention new
functions].

and ENGINE is destroyed.

Add missing prototypes.

Fix engine method lookup.

implementations and functional reference counting when a context
is allocated, free or copied.

any of them on the linker command line.  Besides, OBJECT_FILE now
represents the last compiled file, and using it here only results in
getting warnings about multiple definitions of the symbols in that
file.

platform to platform. Its absolute value is within few percents
marginal from that of ECB.

return value from sk_SSL_CIPHER_find().

it work better.

functions and EVP_MD_CTX_copy work properly.