1.11.1

[continue-revolution]

v1.11.1

• [x] patch encode_pil_to_base64 to support api return a video #218
• [x] change behavior of PNG saving, add date
• [x] vram optimization for CN
• [x] recover from assertion error such as OOM without the need to re-start
• [x] fix lllite bug
• [x] fix absolute path