Hash_map Package: Release changes
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0.9.2 (09 Jul 2001)

     - Changed Hash_map to Unique_hash_map. Kept old file.
     - Separated Handle_hash_function into own file.
     - Improved performance of default Handle_hash_function.
     - Rewrote manual pages including the UniqueHandleFunction concept.
     - Made protected methods in chained_map.h public such that
       Unique_hash_map can be implemented using a private member
       instead of private inheritance.
     
0.9	initial release