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* Add CoA support (client and server).
* Add tagged attribute support (send only).
* Add salt encryption support (encrypt 2).
* Add ascend data filter support (human readable format to octets).
* Add ipv6 address and prefix support.
* Add support for octet strings in hex (starting with 0x).
* Add support for types short, signed and byte.
* Add support for VSA's with multiple sub TLV's.
* Use a different random generator to improve the security of generated
packet ids and authenticators.