[GRASS5] New GRASS intro

[Hamish]

> I could probably make them update automatically every time anything is
> changed in the layer tree. I thought about doing so and discussed this
> a bit with some of the folks contributing to the GUI discussions. The
> general feeling was that it would be better to let the user decide
> when to update the monitor. This allows you to change multiple aspects
> of a set of overlaying maps and not have to wait through a screen
> redraw for each change...

Maybe as soon as it is potentially out of date make a big red blinking
ring around the redraw button, or simply change the redraw icon to one
with a red ring around it.  ?


> the way it is in some commercial packages.

While it is nice to have company, let's do this right for ourselves, not
do contortions to match someone else's way (unless it is clearly
superior).


Hamish