- Streaming fixes to account for broken OpenAL implementations that don't support setting AL_SEC_OFFSET
- Streaming tests now measure time drift. I'm measuring some weird jitter, though... that might be a problem with movie playback
- Complex scene test now uses a quicker tick, to test the scene manager's efficiency with many sources - which seems good for now :-D
- New test for streaming the same track twice - concurrently. Will be interesting to know if Windows can handle that (windows has some weird file sharing rules - ie: opening a file twice).
o While doing that, I noticed we didn't have a generic API for playing a stream from a position other than the beginning. Fixed that.
- Warning fixes (initialization order)
