Use a separate thread for all fetches of covers.
treec8008623fccc92150624207fc39bfd5861a57cf5
-rw-r--r-- 52 .gitignore
-rw-r--r-- 35147 COPYING
-rw-r--r-- 483 TODO
drwxr-xr-x - gfx
-rwxr-xr-x 1423 nephilim.py
drwxr-xr-x - nephilim