[winGRASS] New winGRASS binary distribution

[Huidae Cho]

Hi,

I've uploaded a new winGRASS binary distribution to
http://geni.ath.cx/grass.html With this package, you can change the
mouse button setting easily by defining the GRASS_ANOTHER_BUTTON
environment variable. This env var helps users use two-button mice
more conveniently.

left button -> left button
middle button -> right button
right button -> click two button simultaneously (usually used to quit)

Huidae Cho