- Migrate to Amrita2
- Read EXIF data
- Handle _darcs, .svn, CVS and RCS directories specially 
  (git/monotone/arch, too?)
- Abbreviate long filenames
- handle spaces in image filenames properly (and other escaping issues)
- Add full caching to thumbnailer
- Add caching headers to thumbnails
- Split thumbnailer service entirely
- Use service location to find thumbnailer
- Resume handling non-jpeg thumbnails
- Write installation instructions
