add install_from_json
don't install packages that are already installed
and don't uninstall packages that aren't installed
Add recipe tester
Fix recipe list
Merge pull request #9 from dwradcliffe/already-installed

don't install packages that are already installed
Merge pull request #10 from OpenWatch/master

Add support for installing from package.json
Set npm version in node attributes
Add badge to readme
Bump chef version
added name to metadata.rb
Don't install NPM if already installed

Installing the latest npm from source installs the npm binary
to /lib/node_modules/npm/bin/npm-cli.js and creates a symlink in
/usr/bin/npm (not in the nodejs install directory)
Merge pull request #12 from spulec/master

Add recipe-tester.com support
Merge pull request #14 from nisaacson/master

Add in name field to metadata.rb
Merge pull request #15 from rramsden/master

Don't install NPM if already installed