Merge upstream 4

[Interpause]

See issue #15.

Yes, I messed up the merge request number lol.

Tasks to do:

• [x] review changes made to determine if it will affect the backend server
• [x] test the plugin still works (especially inpainting)
• [x] test plugin from blank slate (delete .ini file)
• [x] test Gradio webUI works

Upstream Changelog:

• upscale latent for highres fix was removed in favour of letting the user specify the starting width/height?
• hypernetwork training
• deepdanbooru is fully integrated in the webui apparently
• Image history tab wow
• ngrok as alternative to gradio --share for localhost tunneling
• anti-ACE for models
• lots of work on the textual inversion training UI apparently