Often talks have items in addition to slides - maybe a zip file of code examples or a podcast or a video or something - the ability to add additional links to the talk with this information would be great.
1. As a Speaker I want to be able to submit a collection of talk links to the API so that they are added to my talk
1. As a System Admin I would like the 'slides_link' posted to the talks endpoint in the 'links' collection to be also stored to the talks table `slides_links` field in order to support backwards compatibility with Web1
1. As a System Admin I would like the GET /talks endpoint to check that the `talks` table `slide_links` match the link in the `talk_links` table entry for the talk's slides, and update the talk_links table if not, in order that slide links updated via Web1 are replicated to the API responses
1. What should happen if the API talks endpoint receives a request with both `slides_link` and an entry in the links collection of type `slides`?