add scripts to create zip files with android releases

Change-Id: I79d073e090a746ed5a73bd734ae12c8b861a17fb
Reviewed-on: http://review.couchbase.org/44107
Reviewed-by: Traun Leyden <tleyden@couchbase.com>
Tested-by: Traun Leyden <tleyden@couchbase.com>