amend docs.

This better reflects their behaviour.

qualifier in asm definitions as it prevents compiler from moving
the instruction(s) during optimization pass.

macro

and initialize too_many because memset(..., 0, ...) is not used here.

Avoid enabled 'assert()' in production library.

algorithm is used.

temporary BIGNUMs. BN_CTX still uses a fixed number of BIGNUMs, but
the BN_CTX implementation could now easily be changed.

used anywhere in OpenSSL, but might be used by libdes applications.

were fixed up. The catch is that in the DESX test the cbc2_key is used
as whitening key where *all* 64 bits are significant.

OpenSSL_add_all_algorithms(). Move these into
separate files so they work properly.