Integrate a blob storage server into the core components

[pevisscher]

Blob storage resolves situations wherein files are either too large to communicate using WAMP, or are passed to often to do it efficiently. By integrating blob storage into the mdstudio framework we are able to handle these situations more gracefully and generaly.

A quick search gives the options:

• http://docs.ceph.com
• https://docs.openstack.org/swift/latest/index.html
• http://pithos.io/index.html
• https://www.zenko.io/cloudserver/