merge master

src/components/character-controller.js

src/components/gltf-model-plus.js

src/components/hand-controls2.js

src/components/tools/pen.js

src/hub.html

src/materials/MobileStandardMaterial.js

src/scene-entry-manager.js

src/systems/userinput/bindings/keyboard-mouse-user.js

src/systems/userinput/paths.js

src/systems/userinput/userinput.js