created_at and updated_at fields

[jrf0110]

It would be fairly trivial to add this as an option to dirac schemas:

{
  name: 'users'
, createdAt: false // false to disable
, createdAt: 'createdAt' // string to provide your own name default: created_at
, updatedAt: 'updated_at'
}

Unless specified otherwise, dirac will add created_at and updated_at fields to all of your schemas, and maintain updated_at for you.