Should load image from another day if today's image is a video

[lloydstubber]

First off, love the plugin! Just wanted to submit this to let you know today's image isn't loading. See screenshot attached.

Running on:

• Hyper 1.3.3
• Windows 10 Pro 1703
• OS Build 15063.413
• WSL Bash - Ubuntu 16.04.2 LTS

Cheers!

[lloydstubber]

Seems like it's working today. Had a look at the NASA post yesterday and it was a video.

[cseale]

I'm reopening this as an issue if anyone decides they want to tackle it. If there is no image for the day, it would be nice to fall back to the next available image and always have something to display

[Booom3]

@cseale
I made a pull request for this
#13