There are API methods in Live and SitesManager that take 'limit" instead of 'format_limit'.
On second thought, format_limit doesn't appear in any other method signatures, and it would be a compat buster to simply remove 'limit' from the parameter list.
(In ) fixes #1706, refs #1832 - allow filter_limit to override default limit; provides API consistency
(In ) refs #1706, refs #1832
(In ) Fixes #1832, Fixes #1873