* Fix a keymap problem on the c200, hopefully won't affect other targets
* Remove the 100x100 limitation (limit is now the screen size)
* Add an option in the settings menu to clear the cache
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15905 a1c6a512-1295-4272-9138-f99709370657
Original code by Ariya Hidayat. Rockbox port by Jonas Hurrelmann and a few tweaks by me.
On the first startup the database is scanned and album art is searched for each album. This process will take some time (dircache enabled and/or database in RAM speed it up, and it is possible to abort by pressing MENU), but the results are cached and the next startups will be very quick.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15900 a1c6a512-1295-4272-9138-f99709370657