do not calculate list of present full pixbufs if the minimal verbosity is not opted...
[booh] / bin /
drwxr-xr-x   ..
-rw-r--r-- 4896 album2booh
-rw-r--r-- 224399 booh
-rw-r--r-- 70340 booh-backend
-rw-r--r-- 76702 booh-classifier
-rw-r--r-- 1022 booh-fix-whitebalance
-rw-r--r-- 1022 booh-gamma-correction
-rw-r--r-- 4770 webalbum2booh