[WIP] = Adding revision history support for Review Request File Attachements

Review Request #6507 — Created Oct. 26, 2014 and discarded — Latest diff uploaded


Review Board


Added updateAttachementView.js class to provide a GUI box to update file uploads

A lot of the infrastructure for file attachement history has been done on the server side but not the client. Before I can get to the slider we need to provide a way to actually update a file attachement.

The js code I'm adding will be modeled after the code structure of diff updating.