Lets you reorganize videos in your watch later list to various playlists (for watch later hoarders like me!)
In order to use this, you'll have to create your own API key and Secret from the Google Developer Console. Insert them in the correct place inside secrets.json and then run app.py.
Note: I've had trouble running this on OS X for some reason; the redirect url seems to have 8080 regardless of what the url is in the redirect list. If others can reproduce, please create an issue for it.