maint: use rows() and columns() to clarify m-files. * gradient.m, interp1q.m, rat.m, tsearchn.m, image.m, imwrite.m, area.m, contourc.m, hist.m, isocolors.m, isonormals.m, meshz.m, print.m, __bar__.m, __go_draw_axes__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m, __print_parse_opts__.m, __quiver__.m, rose.m, shrinkfaces.m, stairs.m, surfnorm.m, tetramesh.m, text.m, deconv.m, spline.m, intersect.m, setdiff.m, setxor.m, union.m, periodogram.m, pcg.m, perms.m: Replace size (x,1) with rows (x) and size(x,2) with columns(x).

--- a/scripts/polynomial/deconv.m
+++ b/scripts/polynomial/deconv.m
@@ -68,7 +68,7 @@
     r = y - conv (a, b);
   else
     ## Respect the orientation of Y"
-    if (size (y, 1) <= size (y, 2))
+    if (rows (y) <= columns (y))
       r = [(zeros (1, lc - ly)), y] - conv (a, b);
     else
       r = [(zeros (lc - ly, 1)); y] - conv (a, b);