[PATCH] Change CTDB to use a Samba-style configuration file

[Martin Schwenke via samba-technical]

This patch set changes CTDB to use a new ctdb.conf (as opposed to
ctdbd.conf) configuration file that has the same syntax as smb.conf.
This means that any new daemons that we introduce can read ctdb.conf
directly.

A couple of changes before that happens:

* Drop CTDB_MAX_PERSISTENT_CHECK_ERRORS option

* ctdbd no longer creates database directories - installation (or
the admin, for not default directories) does that

ctdbd_wrapper is nearly gone. It can probably go away soon.

I have updates to WHATSNEW.txt around but, to avoid churn (and because
it is a bit wrong in some places), I'm not posting that yet.

Please review and maybe push...

peace & happiness,
martin