[Transponder] change human convertor to show Frequency in Mhz.
openvix: build 676
openvix: build 677
[GetEcmInfo] fix possible BSOD.
[Transponder] return 0 Mhz if no value has been passed to human convertor.
[PositionerSetup] revert last fix, as Transponder has now been fixed.
openvix: build 678
Merge branch 'master' of git://github.com/OpenViX/enigma2