libantlr3c: add version 3.2

Signed-off-by: Espen Jürgensen <espenjurgensen+openwrt@gmail.com>
libavl: add version 0.3.5

Signed-off-by: Espen Jürgensen <espenjurgensen+openwrt@gmail.com>
libunistring: add version 0.9.4

Signed-off-by: Espen Jürgensen <espenjurgensen+openwrt@gmail.com>
mxml: copy from oldpackages and update Makefile slightly

Signed-off-by: Espen Jürgensen <espenjurgensen+openwrt@gmail.com>
forked-daapd: add version 22.0

Signed-off-by: Espen Jürgensen <espenjurgensen+openwrt@gmail.com>