Adds some specs on the udpate database method that was not covered at all.
Adds a "continue reading" link to articles using the excerpt to get the same behavior as articles using the "more" tag.

This was a very sensible request from issue #174.
Fixes some styling on the dashboard when there's nothing to display.

I can't push yet since there's a mountain storm around and my neighbour has turned the Internet access of. So I have a few things I'll push when the storm calms down.