Add PBE algorithms with ciphers, not digests.

Allow ADH to be used but not present in the default cipher
list.

Allow CERTIFICATE to be used in PEM headers for PKCS#7 structures:
some CAs do this.

the old functionality.

Various warning fixes.

Initial EVP symmetric cipher docs.

instead of 'unsigned' counters.
Seed PRNG in MacOS/GetHTTPS.src/GetHTTPS.cpp.

Partially submitted by Yoram Meroz <yoram@mail.idrive.com>.

Add -pass argument to 'enc'.
Fix to make Win32 compile work again.

generator (otherwise they don't work) and add -rand
option. Update docs.

amend docs.

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.