TypeError: add_files() got an unexpected keyword argument 'overwrite'

[hectcastro]

View details in Rollbar: https://rollbar.com/WikiWatershed/ModelMyWatershed/items/81/

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/opt/app/apps/home/views.py", line 276, in project_via_hydroshare_edit
    return _via_hydroshare(request, resource, callback, errback)
  File "/opt/app/apps/home/views.py", line 152, in _via_hydroshare
    return callback(project_id)
  File "/opt/app/apps/home/views.py", line 252, in callback
    }], overwrite=True)
TypeError: add_files() got an unexpected keyword argument 'overwrite'

See:

• e9e5fb4#diff-23b88f185a8523808b5e5c65421c632aR252
• a6422db#diff-8453dc0d1bd9a00fbd3e0dea18fae451L84