- fixed swamp flag.
- fixed phd_PopDxMatrix() not being used anymore.
- deleted ENV_FLAG_SFX_ALWAYS and ENV_FLAG_PITCH_SHIFT and use the sound.h define instead.
- fixed loadlevel update progress not correct at 90%.
- updated GAME_OBJECT_ID, now you can use the new one, but TR5_DEBUG is defined by default to use the old one !