+Mon Jan 1 10:36:26 WST 2007 John Darrington <john@darrington.wattle.id.au>
+
+ * dictionary.c dictionary.h : Added replace_source and replace_dict
+ callbacks, and functions to deal with them.
+
Fri Dec 22 13:56:08 2006 Ben Pfaff <blp@gnu.org>
Simplify missing value handling.