Updated README.md to pmproved NPM provider section

fix for #58
Merge pull request #61 from grafjo/patch-11

Updated README.md to improve NPM provider section
added npm.pp from puppetlabs-nodejs, modified install and init to be able to mark one node installation as the default one
Merge pull request #65 from saheba/npm_management

added npm.pp from puppetlabs-nodejs and make_default option
cs
add missing iconv
Prepare 1.7.0 release
[blacksmith] Bump version
Fix npm list --json parsing error

Modern Node.js module can have more than 20 nested dependencies (like strongloop, for example). And PSON.parse after more than 20 nested objects raises appropriate exception. Setting max_nesting to 100 helps to avoid such behavior
Merge pull request #67 from 7eggs/master

Fix npm list --json parsing error
[blacksmith] Bump version