Feature request: ability to specify date=NOW in metadata settings

#prose.io settings
prose:
  rooturl: "source"
  metadata:
    "source/_posts": |
      layout: post
      title: "Title"
      date: 2012-12-22 14:07
      comments: true
      categories: 
      published: true

I would like to be able to specify date: CURRENT or something and have this field autogenerated on document creation. or just point me on place to implement this

[dereklieu]

#831 allows you to set date: CURRENT_DATETIME to get the current date.

You can also do something like:

- name: "date"
  field:
    element: "text"
    label: "Date"
    value: "CURRENT_DATETIME"

[orschiro]

@dereklieu This is fantastic. Thanks very much for your efforts!