chanserv/taxonomy: Metadata isn't covered by PUBACL

This is consistent with chanserv/info: metadata is public by default
unless the PRIVATE flag is set.
NEWS: add more updates
Set the default to only roll/calc once if not specified.
libathemecore: update CTCP ABOUT.
nickserv/enforce: do not check if a non-existent user is banned from a channel
nickserv/enforce: cleanups
nickserv/enforce: add more checks
NEWS: memorialize Argure's commentary on atheme EOL forever
Ignore CTCP messages that begin with space characters
Add myself to contributors
protocol/inspircd: Ensure ircd-side topic lock state is always what we think it should be
Merge pull request #394 from attilamolnar/master+ctcp

Ignore CTCP messages that begin with space characters
Merge pull request #395 from attilamolnar/master+topiclock

protocol/inspircd: Ensure ircd-side topic lock state is always what we think it should be
atheme 7.2.0.
Require auspex for mark list in info
Fix https://github.com/atheme/atheme/issues/397

Remove unneeded compatibility with Anope's "/msg ChanServ flags #channel modify/clear/list", as it causes issues described in https://github.com/atheme/atheme/issues/397
Merge pull request #396 from errietta/master

Require auspex for mark list in info
Merge pull request #398 from ToBeFree/patch-1

Fix https://github.com/atheme/atheme/issues/397
Revert "Fix https://github.com/atheme/atheme/issues/397"

This reverts commit ed32a1ef52aeb9c0b67699ebedd9cf35c4bb01bd.
chanserv: Always move on to the next nick in case of an error in /cs op etc.

Fixes #399