fix Dockerfile path

Fix text texture layout bug in threeworld.js

Higher quality, more efficient panzoom producer.

Don't produce extra images after 'out' point. Don't antialias ShaderKit.

UTF8 decode string MLT property values.

Rework shader.js into shaderkit.js.

Update for Three.js r46.

Fix webvfx.panzoom translation.

Shader improvements. New webvfx.panzoom producer. Dump nested event loop

shader.js fix.