headings in option menus

There was a great deal of inconsistency in
different menus on how headings were displayed.
This allows the user to select what they like best.
I was motivated to do this, because I wasn't satisfied
with the appearance of ATR_INVERSE in the menus
on win32tty, and several of them specified it.

src/weapon.c

@@ -892,7 +892,7 @@ enhance_weapon_skill()
 		/* Print headings for skill types */
 		any.a_void = 0;
 		if (i == skill_ranges[pass].first)
-		    add_menu(win, NO_GLYPH, &any, 0, 0, ATR_BOLD,
+		    add_menu(win, NO_GLYPH, &any, 0, 0, iflags.menu_headings,
 			     skill_ranges[pass].name, MENU_UNSELECTED);
 
 		if (P_RESTRICTED(i)) continue;