Removes src/native/ffmpeg/Makefile which is outdated and obsoleted by src/native/build.xml.
Switches the iLBC codec implementations from com.ibm.media.codec.audio.AudioCodec to .impl.neomedia.codec.AbstractCodecExt in preparation for replacing JMF with FMJ.
Makes it possible to have MediaFormat instances with the same encodings and clock rates and different format parameters and still display them as a single choice in the Audio/Video configuration forms of the Tools > Options dialog.