Add gometa to the couchbase server build

Change-Id: I15a73d855443dc1e9c9c2bbaa9a1eefca216cc87
Reviewed-on: http://review.couchbase.org/43597
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>