Other in Graphics
Replaced the home-made thumbnail preview pane with a KDirOperator/KFileIconView combination.
Eliminates some possible crashes (bugs 66713, 132701, 144074) related to the ownership and destruction of KFileIconViewItem's (see the comments in thumbview.cpp for more discussion).
Also simplifies the communication between the scan packager and the previewer, since most file operations are noticed automatically and the thumbnail view updated.
Implement a popup menu for the thumbnail view, with much the same operations as the gallery tree - bug 69464