external dragndrop support

"""
I have another question/feature request. I've tried
dragging-n-dropping images from imgSeek and into other KDE based
applications (I wanted to drag from imgSeek into Gimp) but it didn't
work. Is it possible to enhance the image browser in imgSeek to
support dnd?
"""

PyQT content-aware Drag'nDrop example:

http://www.opendocspublishing.com/pyqt/x8073.htm

Current code on imgSeekApp.py does drag&drop with a simpler
approach: Just enabling drag operations on the iconview, and then
implementing the drop method, like BrowseCategListView_dropped.

Investigate how these two methods would co-exist, investigate how
QImageDrag works and test with other KDE apps and gimp.