find_icon
* src/ImageSelect.py: remove internal media widgets, use new
find_mime_type_pixbuf instead of find_icon
* src/ImgManip.py: catch pixbuf_new_from_file exception
* src/MediaView.py: use new find_mime_type_pixbuf instead of
find_icon
* src/SelectObject.py: use new find_mime_type_pixbuf instead of
find_icon
* various: replace the deprecated gtk.TRUE/gtk.FALSE with
True/False
svn: r4085