Update 1.0.0-beta release metadata

Change-Id: I83bd320274af7d4be1335e46eb666aaa1fe8cbd5
Reviewed-on: http://review.couchbase.org/27031
Reviewed-by: Matt Ingenthron <matt@couchbase.com>
Tested-by: Mordechai Nunberg <mnunberg@haskalah.org>