Data import and export

[jgable]

This is a rudimentary import and export data layer. Still will need the UI bits, but I think it should be pretty easy to consume:

var exporter = require('./core/shared/data/export');

exporter(ghost.settings.version).then(function (exportedData) {
  // Make it rain exported data
  resp.set('Content-Type', 'application/json')
  resp.send(JSON.stringify(exportedData));
});

I think it's extensible enough to allow for legacy version exports / imports.

Tell me what you think. I didn't spend a lot of time, so feel free to give feedback on an alternate approach.

[ErisDS]

👍 This looks exciting. I'm going to pull it down and play with it today. Thank you so much for doing this!