create a draft exhibit on new data source submit
defer creation of the exhibit profile until later
method to generate a basic exhibit profile
Create abstract base freemix.exhibit.models.DataTransaction to be used for asynchronous data transformation and augmentation. Create viewshare.apps.upload.models.UploadTransaction to handle transformations with Akara.
Create freemix.exhibit.models.ExhibitProperty and Property Data models asyncronously.

Create data migrations for freemix.exhibit.models.DataTransaction and
upload.models.UploadTransaction.