change to maven-publish plugin

Change-Id: I05677cacc41c2316de5e4541f7cfb694e86116f0
Reviewed-on: http://review.couchbase.org/40537
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>