CERNBox + Indico: CERN services working together

<!--HTML-->CERNBox is a sync and share collaborative cloud storage solution developed at CERN, used by more than 37K users and storing over 18PB of data. One very prominent workflow at CERN is to edit a document at CERNBox's collaborative tools, then download it and upload as an event material. This presented a perfect opportunity to integrate both services, by allowing users to directly attach files stored in their cloud space. This integration has become an Indico plugin which now supports any OCIS-compatible EFSS platform.