File storage simplification

[scottnath]

1. In practice, using vinyl for file processing, beyond local and s3, is proving problematic as there are not a wide breadth of adapters for commercial asset storage providers. Specifically, openstack, which is used by Bluemix, has no vinyl adapter.
2. In researching how to create a vinyl adapter for openstack, I've fallen upon pkgcloud, which includes a ton of storage connections
3. Multer, our current form processor, plays very nice with pkgcloud
4. I believe using pkgcloud + multer will reduce the code required in put, at the same time we add built in functionality for multiple asset services. Selecting a different service would only require changing the config.

Feature: Asset storage
  As an implementer
  I want to easily switch my storage provider
  So that I can experiment with other storage providers with only configuration changes.

  Scenario: Openstack
    Given that I want to use Bluemix as my asset storage provider
      And that Bluemix the openstack platform for asset storage
     When I upload files as content
     Then I need those files should be uploaded to Bluemix using openstack's protocols.

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Asset storage

• Openstack

[Snugug]

I'm OK with this