Wistia and DailyMotion support

I know we have an open issue for consideration for DailyMotion already over at https://github.com/WebDevStudios/Automatic-Featured-Images-from-Videos/issues/50

One thing to keep in mind with any site is that they need to have an API in general, but most specifically a way to programmatically fetch a video screenshot of some sort from the provided video. I know I’ve looked into possibilities for other video services in the past and had to close the enhancement issue because they didn’t meet those needs.