- added WMRemoveFromArrayMatching(array, match, cdata), which will remove the

first element in the array that is matched by match(item, cdata)==True.
- added WMArrayFirst(), WMArrayLast(), WMArrayNext() and WMArrayPrevious()
  functions and also WM_ITERATE_ARRAY() and WM_ETARETI_ARRAY() macros, to make
  interfaces to WMBag and WMArray similar and to make life a little simpler
  when iterating through all elements of an array.
- replaced bags with arrays wherever appropriate. This will improve
  performance a bit.
- replaced some recursive code with iterative code in WINGs/selection.c
- some code cleanup is src/

WPrefs.app/imagebrowser.c

@@ -58,7 +58,7 @@ struct _ImageBrowser {
     
     ImageBrowserDelegate *delegate;
     
-    WMBag *previews;
+    WMArray *previews;
 };