interrupt loading of current image in case user is moving fast, in order to display...
[booh] / bin /
drwxr-xr-x   ..
-rw-r--r-- 4899 album2booh
-rwxr-xr-x 207177 booh
-rwxr-xr-x 66125 booh-backend
-rw-r--r-- 67797 booh-classifier
-rw-r--r-- 1021 booh-fix-whitebalance
-rwxr-xr-x 1021 booh-gamma-correction
-rwxr-xr-x 4773 webalbum2booh