Sort entries on the dashboard

[martinthomson]

The new dashboard is great, but the items in the table seem to be arbitrarily ordered.

[zcorpan]

The order is by issue number, newest at the top.

[martinthomson]

That was not obvious. It might be clearer that this was the case if there was an issue number or date in the table; though I'm not sure that it is necessary to do that.

The old table allowed sorting, which is a useful feature, but might be something to add at the same time. (A sort order select to the right of the search box might be how I would do that, but I'd defer to your better judgment in these matters.)