fixed crash when reading certain non-standard EXIF headers
fixed sporadic hangs (spinning wheel cursor, often affected Intel machines)
fixed white line drawing artifacts in thumbnail view
some internal changes to work with resolution independence (in anticipation of Leopard)

* New icon (thanks to Takeshi Gondo)
* Selected thumbnail now matches last viewed slide
* Items now sorted by filename (Finder order)
* Skips folders named "Thumbs" (for better iPhoto library browsing)
* fixed - exif thumb popup menu now hides when info window is collapsed
* fixed - ghost of last thumbnail no longer remains when deleting a file
* fixed - jpeg transformations no longer cause menubar/dock to show during slideshows
* Italian localization