Revision history for Perl extension GDS2.

Makefile.PL created by h2xs 1.20 with options
        -X -n GDS2
        
1.0   Originally developed on big endian machines, I still have some
      work to do on the write methods for little endian machines.

1.1   Should be set for little endian machines. Starting to look
      for speed improvements.

1.1.1 Started adding tests. Needed to make a change to little-endian
      record read.

1.2.0 Added a bunch of constants. Starting to look at speed-ups. Write
      year out as years since 1900 since Cadence pipo has problems with
      ISO type date (2001 v.s. 101)

1.2.1 Put option -isoDate in to print years as 2001 instead of 101
      since the GDS2 spec doesn't seem to care and supports an integer
      up to 65535. Added experimental option -markEnd to close() for 
      David Kao to try. Fixed -width option to printPath() and added 
      -unitWidth option for backwards compatibility.

1.2.2 Added:
        returnSname() -  return string if record type is SNAME else ''
        returnXyAsArray() - returns current (read) XY record as an array
        returnRecordAsPerl() - returns current (read) record as a perl command 
            to facilitate the creation of parameterized gds2 data with perl.
        ReturnRecordAsPerl was contributed by Peter Baumbach. Thanks Peter!