plplot: adapt font size scaling to smaller nanonote display

plplot/patches/050-linuxvga-320x240x16M.patch

@@ -1,7 +1,7 @@
 Index: plplot-5.9.7/drivers/linuxvga.c
 ===================================================================
 --- plplot-5.9.7.orig/drivers/linuxvga.c	2011-01-08 12:20:09.000000000 +0100
-+++ plplot-5.9.7/drivers/linuxvga.c	2011-01-08 15:37:11.000000000 +0100
++++ plplot-5.9.7/drivers/linuxvga.c	2011-01-09 14:23:05.000000000 +0100
 @@ -39,8 +39,8 @@
  
  /* INDENT ON */
@@ -22,16 +22,19 @@ Index: plplot-5.9.7/drivers/linuxvga.c
      if ( vga_hasmode( mode ) )
          vga_setmode( mode );
      else
-@@ -202,24 +202,40 @@
+@@ -111,7 +111,7 @@
+ 
+     totcol = vga_getcolors();
+ 
+-    plP_setpxl( 2.5, 2.5 );       /* My best guess.  Seems to work okay. */
++    plP_setpxl( 1.0, 1.0 );
+     plP_setphy( 0, vgax, 0, vgay );
+ }
+ 
+@@ -202,24 +202,34 @@
  void
  plD_state_vga( PLStream *pls, PLINT op )
  {
-+   static const int vga_palette[16] = {
-+      0x000000, 0x000080, 0x008000, 0x008080, 
-+      0x800000, 0x800080, 0x808000, 0xc0c0c0,
-+      0x808080, 0x0000ff, 0x00ff00, 0x00ffff,
-+      0xff0000, 0xff00ff, 0xffff00, 0xffffff
-+   };
 +    int r, g, b;
 +
      switch ( op )

plplot/patches/060-font-size.patch

@@ -0,0 +1,18 @@
+Index: plplot-5.9.7/src/plpage.c
+===================================================================
+--- plplot-5.9.7.orig/src/plpage.c	2011-01-09 14:23:21.000000000 +0100
++++ plplot-5.9.7/src/plpage.c	2011-01-09 14:37:42.000000000 +0100
+@@ -152,9 +152,12 @@
+ //	Reduce sizes with plot area (non-proportional, so that character
+ //	size doesn't get too small).
+ //
++    /* on small screens this won't work right.  decrease virtual page length
++     * to match the nanonote's small screen */
+     scale = 0.5 *
+             ( ( plsc->phyxma - plsc->phyxmi ) / plsc->xpmm +
+-              ( plsc->phyyma - plsc->phyymi ) / plsc->ypmm ) / 200.0;
++              ( plsc->phyyma - plsc->phyymi ) / plsc->ypmm ) / 160.0; 
++    /* was: /200.0 */
+ 
+     // Take account of scaling caused by change of orientation
+     if ( plsc->difilt && PLDI_ORI )