NAME:
  cloneast
 PURPOSE:   (one line only)
  Clone astrometric solutions from one night to another
 DESCRIPTION:
 CATEGORY:
  Astrometry
 CALLING SEQUENCE:
  cloneast,otherdir,offset
 INPUTS:
  otherdir - String pointing to the other directory from which to get
                astrometric solution
  offset   - Numeric offset of file name.  Files are named YYMMDD.nnn in
                each directory.  When linked, the root name is changed and
                the other frame has the offset added to the suffix number.
 OPTIONAL INPUT PARAMETERS:
 KEYWORD INPUT PARAMETERS:
  OVERWRITE - if set, overwrite solution, otherwise skip frames with
                 pre-existing solutions
  MAXOTHER  - Largest image number to copy solution from in the other
                 directory.  Default=199.  This prevents cloning a solution
                 that has already been cloned.
 OUTPUTS:
 KEYWORD OUTPUT PARAMETERS:
 COMMON BLOCKS:
 SIDE EFFECTS:
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written by Marc W. Buie, Lowell Observatory, 2003/06/23
  2003/07/03, MWB, added MAXOTHER keyword
  2004/07/21, MWB, added creation of symbolic links for srd and psf files
  2009/08/05, MWB, modified for new rd/wrastfc versions