Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix various DTLS fragment reassembly bugs.

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Don't drop DTLS connection if mac or decryption failed.

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix DTLS buffer record MAC failure bug.

correct solution to problem addressed in committ #19244.

directly by SSL/TLS SHA2 certificates are becoming more common and
applications that only call SSL_library_init() and not
OpenSSL_add_all_alrgorithms() will fail when verifying certificates.

Update docs.

Submitted Daniel Mentz <danielml@sent.com>

Documentation typo.

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixes for DTLS replay bug.

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixes for DTLS buffering bug.

Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixes for DTLS timeout bug

Fixes to make OpenSSL compile with no-rc4

PR: 2194

I can't think of any other cause for failure

Check return value if d2i_PBEPARAM().

Remove useless num = 0 assignment.

Remove redundant cases on sock_ctrl(): default case handles them.