Adjust parameter names in reflection to match couchbase-api.php

Change-Id: I614ec4c284a56e19dc31df6754e987877fcc33f3
Reviewed-on: http://review.couchbase.org/25656
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>