another update to the readme

- shorten 'getting started' section, change to
  'installation'
- move everything except amd and cjs to
  docs/installation.md
- add simple usage example
- add link to license
- add contributing guide
- move running tests to contributing guide
update example to 'done' syntax
update readme with new examples
run-script > run
corrections in AMD installation
See #228. Switch some internals to prototypes, simplify message delivery
Add jsdoc
add curl.js amd example
fix typo: ft "geMessage()" => "getMessage()"
Merge pull request #234 from couchand/patch-1

fix typo in api docs: ft "geMessage()" => "getMessage()"
Merge pull request #229 from jenius/readme

Update README. Add installation and contributing docs.
typo fix in readme
Merge pull request #235 from kamilbiela/master

typo fix in readme
Merge branch 'master' into dev
Simplify ender instructions.  Thanks for the tip, @ded
Minor cleanup in unfold
Bump version, update changelog
fix typo
fix another typo in nodefn.apply() section
Merge pull request #238 from zhiyelee/master

fix typos