Ticket0787: onSuccess, use inkblob.mimetype to figure out next step
Ticket0790: Set up filepicker read to display images
Update hideChrome to reference leaves id rather than leaves class
Ticket0785: Create a display-region within the crown element to view file
Ticket0783: Send URL to Box View API in a POST request
Refreshing a page will still retain leaf data, Ticket0784
Ticket0784: Retrieve attach_src to allow attachments to load on refresh
Ticket0791: Fix CSS and display issues for attachments
Update Box View API call so sessions do not expire until 2020