Ieee80211Interleaver: added plus info to the error msg.
Ieee80211LayeredDecoder: fixed a constructor.
Ieee80211LayeredEncoder: fixed a constructor, deleted an old function declaration.
Ieee80211LayeredTransmitter: added compliant/non-compliant padding.
Ieee80211LayeredReceiver: header replaced with the signal prefix in the decoder and demodulator.
Ieee80211LayeredEncoderModule: added getCode(), moved encoder initialization in the PHYSICAL_LAYER stage.
Ieee80211LayeredEncoder: is implemented by Ieee80211LayeredEncoderModule.
Ieee80211LayeredDecoderModule: some specific type replaced with their interface type.
Ieee80211OFDMCode: deleted a TODO.
Layered80211: updated example.