[depends] - bump mdnsresponder to 379.37
[zeroconf] - add new hostname field to the service class - its needed by mdns
[mdns] - fix service resolving when using mdns-embedded
- don't call our dnsresolver in the callback but try it in the zeroconf thread instead
- if that fails (as it does in some networks/platforms where gethostbyname doesn't resolve .local. domains) - fallback to the mdns resolver
[mdns] - enable zeroconfbrowser via mdnsembedded - as the browsing/service-resolveing issue is solved now
Merge pull request #2864 from Memphiz/mdns

[mdnsembedded] - fix zeroconfbrowser
jsonrpc: fix property values returned by Player.GetItem
jsonrpc: use "song" as default value for "type" property
cosmetics in CFileOperations
jsonrpc: fix "filetype" property being (unexpectedly) returned for Player.GetItem et al.