CBD-87: error message when couchstore module missing
CBD-87: error message when couchstore module missing

Change-Id: I643e2631246840a0e56d7fb05f6ba43ab80a961c
Reviewed-on: http://review.couchbase.org/17533
Reviewed-by: Pavel Paulau <dd88eded64e90046a680e3a6c0828ceb8fe8a0e7@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

couchbase/couchbase-cli,membase/membase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,membase/membase-cli,membase/membase-cli,couchbase/couchbase-cli