New high_res_perimeters option (like the "Skin" plugin for Skeinforge)

slic3r.pl

@@ -40,6 +40,7 @@ GetOptions(
     
     # accuracy options
     'layer-height=f'        => \$Slic3r::layer_height,
+    'high-res-perimeters'   => \$Slic3r::high_res_perimeters,
     
     # print options
     'perimeters=i'          => \$Slic3r::perimeter_offsets,
@@ -139,6 +140,9 @@ Usage: slic3r.pl [ OPTIONS ] file.stl
     
   Accuracy options:
     --layer-height      Layer height in mm (default: $Slic3r::layer_height)
+    --high-res-perimeters
+                        Print perimeters at half layer height to get surface accuracy
+                        (default: disabled)
   
   Print options:
     --perimeters        Number of perimeters/horizontal skins (range: 1+,