use new PKGCONFIG style from vdr 2.1.3
override GetCurrentlyTunedTransponder, IsTunedToTransponder and MaySwitchTransponder from cDevice
use udev to find related vbi device
use udev to find related radio device
put cUdev into a namespace, same code is used by dynamite
Merge branch 'master' into yavdr_master
new upstream release