WinGui:

WinGui:
- Expands the audio tab to 4 audio tracks. This will require through testing. Users should avoid track combinations such as 1 & 4, 1 & 3, and 2 & 4. Instead, 1 & 2 & 3 or 1 & 2 or 2 & 3 & 4 should be used.

git-svn-id: svn://localhost/HandBrake/trunk@1406 b64f7644-9d1e-0410-96f1-a4d463321fa5