Something in Anki is setting stdout to Null.
This is a problem because Anki itself is writing to it,
particularly when printing warnings about
the deprecated methods that we are using.
This patches Anki using the same method that
the upcoming Anki 2.1.51 is using.
* Improve and simplify code handling CORS
* Don't execute request when origin not allowed
Fix vulnerability
* Remove webCorsOrigin legacy option
It's confusing (and potentially insecure as removing webCorsOrigin in configuration would still set it to localhost)
* Allow 127.0.0.1 and browser extension if localhost allowed
- Sound and video share same [sound:..] tag. See 0c08ff5317/pylib/anki/sound.py (L33)
- Tested and verified picture is added and video is added when `addNote` API.
