S3 staging site for presentations

As a quality control check, some associations want all presentations for an upcoming meeting to be in one location that production resources can monitor. With this update, as part of the upload configuration, presentations can be saved on a CTI S3 AWS server.

As a quality control check, some associations want all presentations for an upcoming meeting to be in one location that production resources can monitor. With this update, as part of the upload configuration, presentations can be saved on a CTI S3 AWS server.