Added a RIS export option to the citation popup, providing a text file. This should be served with the correct mime type, but until we rebuild eXist we can't incorporate the mime type, so I'll need to remember to do that next time we rebuild, and then edit ris.xql.

I then added a rudimentary COinS span to the box (this is an invisible span that hides metadata in its title attribute). This looks like it would be a good idea, and Zotero can apparently read it, but it turns out that the spec is so sparse that it's hopeless; you can only do books and journal articles, and there's no way to include an editor. No use at all for proper work. I think we'll need to work on encoding bibliographic data into the HTML meta tags, or as RDF XML, but I need to find out what tools are able to read this appropriately. One other possible model is the Dublin Core we put in to the meta tags of the Despatches pages.