Fix for progressive setting in metadata,

thread: http://forum.xbmc.org/showthread.php?tid=172326
If FRODO VIDEO_TS Handling is enabled in settings, .actors-folder and movie.nfo is now saved in parent directory for DVD folders too (like poster/fanart!) we shouldn't mess with DVD structure!

more here http://forum.xbmc.org/showthread.php?tid=166013 (XBMC Developer statement)
Merge pull request #6 from Cocotus/master

2 Fixes: progressive setting in metadata, FRODO VIDEO_TS Handling