add the 3.2.0 announcement text -- match the scheme we've been using in 3.1.x
add the 3.2.0 announcement text -- match the scheme we've been using in 3.1.x

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@498777 13f79535-47bb-0310-9956-ffa450edef68

apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin