default[:nodejs][:versions]   = ["0.4.11", "0.5.5"]
default[:nodejs][:aliases]    = {"0.5.5".to_sym => "latest", "0.4.11".to_sym => "stable"}
default[:nodejs][:default]    = "0.4.11"

default[:nodejs][:versions]   = ["0.4.12", "0.5.8"]
default[:nodejs][:aliases]    = {"0.5.8".to_sym => "latest", "0.4.12".to_sym => "stable"}
default[:nodejs][:default]    = "0.4.12"

Update node.js versions to latest.
Update node.js versions to latest.

 - Stable is now v0.4.12
 - Unstable is now v0.5.8