Wed Jun 11  2003  T Horinouchi
	* axis.rb: loc -> pos
	* grid.rb: delete attr_reader axes and define axis/set_axis methods
	* gphys_netcdf_io.rb: define write
Mon Jun  9  2003  T Horinouchi
	* axis.rb,grid.rb,gphys.rb: define copy (I will probably change
	  the name). This is to make a deep clone, which possbly read
	  data in a file (or files) and store them on memoty.
Sun Jun  8  2003  T Horinouchi
	* ggraph.rb: saved and start writing from scratch (far from completed)

Wed May 14  2003  T Horinouchi
	* gphys-0.0.2 released
