WinGui: Some more work on the Instant HandBrake prototype. 

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5756 b64f7644-9d1e-0410-96f1-a4d463321fa5
Interop: Add Path to the Title object
WinGui: Set the SourceName in the Title object so auto-naming works correctly for folder scans.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5757 b64f7644-9d1e-0410-96f1-a4d463321fa5
WinGui: Possible fix for the main feature detection.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5758 b64f7644-9d1e-0410-96f1-a4d463321fa5