We have reorganized the local cache. When starting this update, the old cache will
automatically be converted to the new format. The changes:

- No more duplicates on your hard disk: If you insert a file into Wuala, Wuala won't
  copy the file into its cache anymore. Instead, it remembers the original file location
  and uses that file instead when accessing or uploading the file (as long as the original
  file isn't changed or removed). This saves lots of local disk space. Similarily, Wuala
  remembers the location of files you export.
- More responsiveness when inserting files: generating thumbnails, encryption and
  hashing of newly inserted files is now done in the background and not interfering
  with browsing any more.
- Pasting web links into Wuala now also works for large (>100MB) files.
  Many users don't know this, but you can paste any URL into Wuala
  (e.g. http://farm4.static.flickr.com/3116/2297045198_b95105eeb1_o_d.jpg). 
  You can also paste copied text, that's how I normally insert these changelog files. :)
- No more local backups.
- Performance: less disk accesses, faster access to locally stored data.               