My updated patches

[John W. Eaton]

On  7-Nov-2007, David Bateman wrote:

| I've made some changes to the previous patches I sent and added a new
| patch. Find the patches attached.

| The patch5, adds the pie, surfc, and quiver functions, adds these to
| Makefile.in(SOURCES) together with surf, etc that were missing and
| documents them in plot.txi (in a minimalist fashion).

| patch7 is the changes necessary to __go_draw_axes__ to allow surf, et al
| to work with gnuplot 4.0 and a fix for meshc that was completely broken
| by the changes to surf.

| patch9 is a fix to the gradient function that doesn't work correctly if
| dx or dy are scalar and the Z matrix is not square.

Since I had already applied the earlier patch, I compared the new
diffs to the old and applied the changes (partly by hand).  Please
update and let me know if you see anything missing.

jwe