CCBC-367: Fix missing host for management requests

Change-Id: Iaf6c7ec3fb3d6417b5a91e24fbd3b1246e3654c0
Reviewed-on: http://review.couchbase.org/35981
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>