ENH: more openssh fail messages from openssh source code (CVS 20121205)
BF:  filter.d/sshd "Did not receive identification string" relates to an exploit so document this in sshd-ddos.conf but leave it out of authentication based blocks in sshd.conf
Merge pull request #175 from grooverdan/ssh-filter

ENH: more openssh fail messages from openssh source code (CVS 20121205)