Automatic link enhancement

[loleg]

While the current widget is relatively easy to get started it, the idea of having to put div tags and other HTML somewhere in their content is rather daunting for users. I have been thinking that a better way to go would be to just include the script in the CMS, and then pick up plain search links in the page content as targets for the widget. Perhaps they would need to be suffixed with #ckanembed or so, but this would dramatically improve the user experience. And it would truly take advantage of having an in-line widget, rather than the safer alternative of an IFRAME or so. We could also then consider creating an additional mode for decorating links to specific datasets (e.g. on hover).