Add in python file, api page from url http://ip:port/api/lth/ Chnage index.html (containers[wrappers] canvases) Add to sahder Sobel, two other operations Sharra, Prewitt, and select element for set him (experiment). Fix ThreeCanvas.js, lines canvas material set normal. Fix when delete model and add now, not set position and model not visiability. Other small fixes...