Combined system and resource provider selection into one screen
Changed action back to always use system selection
Reset property on model entering
Adoped Titanium to new workflow
Renamed "share" to "media source"; "local" to "client" and "global" to server
Removed "resource provider"
Improved style (avoid truncated text)
Removed "choose system" (replaced by combined screen)
Added SystemAffinity to ResourceProviderMetadata to control availability of RPs
Added SystemAffinity to ShareProxy and filter the RPs in share setup
Fixed provider selection for single sources