For music folders:
* Resize method (crop or preserve)
* Make mosaic when there is more than one cover
For picture folders:
* Chose the maximum number of pictures to display on the thumbnail (from 1 to 4)
For ignored folders:
* "Never ignore" a folder
Other changes:
* An option for changing the thumbnail size in nautilus
* Now cover thumbnailer prevent from misconfiguration of GNOME default folders
* A new install script with dependency check