Created by: davewasmer
The popover's plugin now checks for a data-target attribute on the element, or a target option passed in. If one is found, it uses that as a selector. The contents of the popover are copied from the contents produced by the selector.
It uses .html(), not .clone(), so no extra baggage comes along with it - not sure if that would be the expected functionality (that's my expectation, but I don't know if everyone else agrees).
I updated the documentation to reflect this additional functionality, including a second example button for the popover demonstration to illustrate the HTML content capability.