Refresh view when assigning or removing prefix

[mfenner]

Currently the view is not updated in Fabrica.

[kjgarza]

using the ember-inspector one can see the storage getting updated and on redirection one can see the model and afterModel hooks being triggered. however, the query that retrieves data doesn't bring the updated data. the quey is in the model hook.

[kjgarza]

need to modify https://github.com/datacite/bracco/blob/dc89788/app/routes/repositories/show/prefixes/index.js

[kjgarza]

this.store.query('repository-prefix', params, { reload: true }) seems to be looking at the index, unfortunately the indexing task for the prefix is very slow