"Same as source" changes. Old behavior: mark all NTSC content as 23.976. New behavior...

"Same as source" changes. Old behavior: mark all NTSC content as 23.976. New behavior: mark all NTSC content as 29.97, only use 23.976 when scanning shows a title reporting itself as mostly progressive.
Also threw in a bunch of commented out logging messages for diagnostic usage.
And notification during encodes when progressive flags go on or off (only works in jam builds until the contrib binary packs get rebuilt).

git-svn-id: svn://localhost/HandBrake/trunk@799 b64f7644-9d1e-0410-96f1-a4d463321fa5