Support changing checkpoint and vae through override_settings

Add Clear Prompt button to roll_col 

Update SD Upscaler to include user selectable Scale Factor

Atomically rename saved image to avoid race condition with other processes

Update launch.py

allow randomized seeds in prompt_matrix

Add option to avoid sending size between interfaces.

add gradio queueing on ui by default to avoid timeout on client side when share=True

Fix None option of VAE selector

add noise strength parameter similar to NAI

Merger ram usage

Add bracket checking functionality to the txt2img/img2img prompts

macOS install improvements

Reinstate DDPM V1 to LDSR

Patch UNet Forward to support resolutions that are not multiples of 64

Bug fix (a few lines in modules/api/api.py)

Make "# settings changed" grammatically correct

Depth2Img model support: resolves #5372, partially addresses #5011

Make the ": " in the settings changed message not show if 0 settings were changed.
"0 settings changed: ." -> "0 settings changed."

Set install_dir to a correct value for macOS. Thanks to @Ephil012 for pointing out this is needed.

maximum of 2 models loaded at once. delete unneeded model before next
step. fix 'teritary' -> 'tertiary'. gracefully fail when "add
difference" is selected without a tertiary model