FULLPIPE: Implement Sound::freeSound() and Sound::stop()
FULLPIPE: Implement Sound() destructor
FULLPIPE: Fixed Sound::getVolume()
FULLPIPE: Implement SoundList::getSoundItemById()
FULLPIPE: Implement Sound::setPanAndVolume()
FULLPIPE: Proper implementation of FullpipeEngine::stopAllSoundInstances()
FULLPIPE: Implement StaticANIObject::calcStepLen()
FULLPIPE: Implement ModalSaveGame::ModalSaveGame()
FULLPIPE: Implement ModalSaveGame destructor
FULLPIPE: Implement ModalSaveGame::getSaveName()
FULLPIPE: More code to ModalSaveGame
PEGASUS: Fix repeated audio analysis video when leaving after defeating Sinclair
PEGASUS: Set volume in more places
PEGASUS: Fix a Norad Delta door locked sound

Based on a patch by Keith Kaisershot