XNAT support
Add a File menu option to browse an XNAT repository
https://pythonhosted.org/pyxnat/
This is newer, but apparently quite immature http://xnat.readthedocs.io/en/latest/
- Open from XNAT option in file menu
- Login dialog (choose server, give credentials)
- Present tree/folder view, allow the user to select images
- Save recently used XNAT servers/credentials