Javadoc 8.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1619948 13f79535-47bb-0310-9956-ffa450edef68
Javadoc 8.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1619949 13f79535-47bb-0310-9956-ffa450edef68
[CODEC-188] Add support for HMAC Message Authentication Code (MAC) digests</action>

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1619950 13f79535-47bb-0310-9956-ffa450edef68