This is the s.surf.rst5.0.1 version

Spring 2002
anisotropy options added by Jaro Hofierka

v. 5.0.0 latest modification in 11/1999
by Bill Brown

Nov. 1999: (M. Neteler)
New structure:
- moved tree/ data/ interp_float/ to
  src/libes/rst_gmsl/
- moved v.surf.rst to src/mapdev/
- moved r.resamp.rst to src/raster/

Spring 1999: changes which allows you to select 
which attribute to interpolate and which 
one to use for smoothing)
