Set input value and update results

I was having problems figuring out how to achieve this with about horribly breaking encapsulation of the plugin, so I'm hoping this small feature request can sneak in.

The use case here was to basically set the input value and show an updated list of results. This was useful in my case because I was pulling data from a remote source.

I don't love the name of the new method, so if there is something more appropriate by all means change it.