rfc 4470
start off appendix on online signing
rewrite paragraph and refer to appendix
nsec3 garbles all owner names
another ref to 4470
note from Mark Andrews
discuss usefulness of nsec3?
update changelog
add Mark to acks
short appendix on usefulness of nsec3 (might be better in body)
more stuff in online signing appendix
fix refs
wrap long rr
small rewrite
on-line and off-line
existence and epsilon references
why only RRSIG and NSEC in bitmap?
phreebird ref and three NSEC3 White Lies
move appendix of usefulness of nsec3 to 2 lines in body
rm unwanted newline