Better build, more examples
Resolve issues created by building separately from source and stabilize
the build scripts. Add an example using FileMagic API and update the
documentation.
- chore: delete files added by mistake to git
13e7892 - doc: add example using FileMagic and update README
e4b1ea5 - fix: generate the magic-js.js and wasm in same directory
bdf9f8c - build(script): create build/lib before copying
f410425 - build(npm): add npm scripts to run the examples
a48786a - build(npm): more thorough clean
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