forked-daapd: Update to 27.4

version 27.4
	- fix web server path traversal vulnerability

version 27.3
	- support for AirPlay 2 speakers, incl. compressed ALAC
	- web UI upgraded, now v0.8.5:
		new design/layout
		optimize "Recently added"
		Spotify search dialogue improvements
		drop separate admin web page, now integrated in main web
		podcast deletion
		make Radio a top level item
		show release dates
		new sorting options
		prevent browser caching of playlists
		additional settings
	- improved Chromecast streaming (retransmisson, adaptive etc.)
	- JSON api support for updating metadata of queue items
	- JSON api new fields, e.g. time_added, time_played and seek
	- fix for some Chromecasts disconnecting
	- new algorithm for more natural ALSA volume adjustments
	- new nickname option for AirPlay and Chromecast
	- mpd fixes (nextsong, multiple commands)
	- charset flexibility when getting ICY metadata from streams
	- adaptive probing of radio streams
	- libplist and libsodium now required
	- fixes for library update events
	- fixes to speaker selection and unintentional volume changes
	- fix some minor memleaks
	- support shairport-sync metadata pipe flush event
	- misc logging fixup


(nia)