* persisted host and port for feed transceiving
* volumeId of a feed is no longer transferred to other device
* when freezing a feed, set it to Volume Frozen, its queue, keepUpdated, autoEnqueue, autoDownload properties are no longer changed
* when unfreezing a feed (on its return), set its volume to none
* in Facets, added Frozen view
* in Library, Show archived also shows Frozen
* persisted episodes count in feed, avoided various screen doing live queries on it
