Fix/improve README

Add "build" and "prepare" scripts to package.json

Remove reference to "myshirt" image

Create README.md

Add basic support for pinch zoom

.gitignore

Improve gh-pages script

Avoid using fractional positions when rendering frames from animated images

Disable image smoothing on zoom

Add gh-pages helper script

Add functionality to fit level to viewport

Clean up leftover `var` declarations

No JS remaining

Minor cleanup

Convert controller