Changes by: Alexei Kopylov (kopylov at cs.caltech.edu)
Date: 2006-06-20 15:44:41 -0700 (Tue, 20 Jun 2006)
Revision: 9351
Log message:

      Two more conversions:
      * reduce_vlistC :  Split the << vlist{| <J> |} >> into the standard form.
      
      * reduce_vflattenC : Split the << vflatten{| <J> |} >> into the append form.