the masses redo after conflic; instead of rebase
Merge pull request #119 from NYULibraries/feature/masses_data_loader

@dismorfo, @eshadatta

Hi Alberto,
I'm merging this request.  

After it has deployed to Development, please load the collection data into 
the Development instance via Jenkins so that the Product Owners can review.

After the data load, please "deliver" [the story](https://www.pivotaltracker.com/story/show/78583656) in Pivotal Tracker.

[Finishes #78583656]