ConvolutionalCoder: fixed a typo.
IFECEncoder, IScrambler: destructors.
Ieee80211Interleaver, Ieee80211Scrambler: missed to set interleaving, scrambling.
Ieee80211Scrambler: added Define_module.
Ieee80211Interleaver, Ieee80211Scrambler: added const qualifiers.
Ieee80211BitDomainTest: updated test to work with the new API.
Ieee80211BitDomainTest: simplified bit domain test.
Ieee80211OFDMModulator: fixed couts.