MB-100: fixed dialyzer failure by correcting ns_log:log spec

Change-Id: I5ae415c55ce27a4bd8c67fdeda23bf1a70f018c3
Reviewed-on: http://review.couchbase.org/25610
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
MB-100: don't consider failed over nodes for recovery

It was pointed out that previous behavior of taking all nodes is not
very desirable. We now take all nodes except failed over (and not yet
added back).

Change-Id: I8dbf1c2c7d7bf80df3dabfa39a2a614474c1a17e
Reviewed-on: http://review.couchbase.org/25611
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>