Revert commit #66c360a6a1cf09f and fixed the issue in other way.
RadioMedium: renamed two functions.
ITransmitter: added getMax{Transmission,Interference}Range().
IdealTransmitter: implemented getMax{Communication,Interference}Range().
RadioMedium: fixed getMax{Communication,Interference}Range(), added sendToAllRadios() and warning if range is NaN.