* Fetch metadata, such as lists of distinct tags, in a sustainable and extensible way
* Support for the new pager in the default dispatcher
* BC BREAK: snippets.get now delivers { snippets [ ... ], tags: [ ... ], total } rather than a simple array of snippets, providing support for pagination and tag filtering based on relevant tags. If you do not set options.fetch.tags then tags are not returned. If you do not set `limit` and `skip` then `total` will be equal to `snippets.length`, otherwise it is useful for determining how many pages are available