Rename to all caps
Shorter header
Rework headers and rephrase commandment
Stop using CLI js-yaml

This eliminates the global js-yaml dependency
Update README to clarify easy setup
Fix localhost link
Move things around between README and CONTRIBUTING
Simplify headers
Sanity print after CSS compilation
Lowercase continuations of sentence
Ignore app manifest for now

The build tasks need to update this, or local development
is impossible without constantly clearing your appcache manually.