Importing FIXES functions from octave-forge, and a couple of other things

[John W. Eaton]

On  2-Apr-2006, David Bateman wrote:

| The first patch is for scripts/plot/grid.m, where the octave-forge
| version probes the state of the grid and toggles the grid in a similar
| manner to matlab. This uses the octave-forge gget function to probe the
| gnuplot grid state through a temporary file, which has potential race
| issues. What I propose for grid.m is to use a persistent variable store
| the state of the grid assuming it is initially off, and toggle in this
| manner. The octave-forge version also allows minor grid lines, but with
| a syntax that is different than matlab. I propose adding the "minor"
| argument, but equally allow the following extensions to matlab
| 
| grid minor on
| grid minor off
| grid minor #
| 
| where # is the number of minor grid lines.

OK, I applied this patch.

| Is it really necessary to
| allow different number of minor grid lines in the different directions?
| I didn't think so and so didn't  allow it.

It might occasionally be useful, but I don't think it is worth the
effort just now.  Let's see if anyone complains about (and then
whoever it is that complains can add it :-).

Thanks,

jwe