[KimDaBa] Fix a warning

[Robert L Krawitz]

This is needed to fix a warning (and possibly a destructor problem)
about an invalid use of a forward declaration.

--- categoryimagecollection.cpp~        2004-12-03 15:39:03.000000000 -0500
+++ categoryimagecollection.cpp 2005-01-03 13:15:53.000000000 -0500
@@ -17,6 +17,7 @@
 */
 
 #ifdef HASKIPI
+#include "imageinfo.h"
 #include "categoryimagecollection.h"
 #include <klocale.h>
 #include "imagedb.h"