release of 2.1.1-763

Change-Id: I3baf7d2f1e09df8cd5134c0b5c3993fbed128f0f
Reviewed-on: http://review.couchbase.org/27732
Reviewed-by: Wayne Siu <waynesiu88@gmail.com>
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>