Feature Request: Stackranking results based on recent dates/views

When there are different results displaying for the same websites, I am getting searches that display older articles at the top (1 week or more, sometimes months ago), and newer articles from the past day or so at the bottom.

ie: `$site=u.today,boost=4` would show articles with the following dates (in order):

- 3 weeks ago
- 2 weeks ago
- 1 day ago
- 2 days ago

If the goggle has just one website, this wouldn't be as much of a problem. But when I have other sites with the same boost ranking, it will also show older results for them as well, so I'll have to scroll past ~8 results before getting the more recent articles from those same websites.

If there were an attribute to specify how the results for individual sites are displayed (_recent date_ vs _views/hits_), it would help to more finely tune search results.

For more news-oriented goggles, results could be based on most recent dates. But it would also give the option to specify more static websites like wiki or informational sites, based on views/hits.

The issue does not identify files, tests, or entry points, so begin by locating the Goggles ranking and per-site boost configuration. Done would mean allowing results to be ranked by recent dates or by views/hits for individual sites, with the behavior demonstrated by tests or documented examples.

Written by the indexing model from the issue text.