[gthumb-list] fix wish list

["Dr. Michael J. Chudobiak" <mjc avtechpulse com>]

Hi all,

gThumb 2.11.x is looking great, Paolo!

This is what I would like to see fixed, sooner rather than later, 
personally:

1. Drag-and-drop to folders.
https://bugzilla.gnome.org/show_bug.cgi?id=593431

and, especially:

2. Folder loads are really slow, even if no images are present.
https://bugzilla.gnome.org/show_bug.cgi?id=611115


- Mike