Add deep linking support for single page application

When exporting to a single page application / slideshow add support for deep linking.

Use Case
John has created a slide show project he uses for his presentations. After the first few presentations he realizes that his audience can be at different skill levels. So he wants to be able to skip to different slides.

He opens the first slide and adds a table of contents. In each section he selects the section text and opens the element options dialog. He selects the artboard that he wants to navigate to.

When he runs the page in a browser he goes to the table of contents artboard and clicks on the links. Each link navigates to the artboard he chose in the element options dialog.