Node.js v0.4 no longer provided by default

as of 2fc3983825
Merge pull request #457 from celkins/patch-1

Node.js v0.4 no longer provided by default
Add Node 0.10
Merge pull request #460 from pedrogimenez/update-readme

Add Node 0.10
Merge branch 'master' of https://github.com/boxen/our-boxen
update ruby version