treefarm + turtle improvements + cleanup

sys/etc/scripts/follow

@@ -46,7 +46,7 @@ local function follow(id)
     addBlocks(pt)
     addBlocks({ x = pt.x, z = pt.z, y = pt.y + 1 })
 
-    if turtle.pathfind(cpt, blocks) then
+    if turtle.pathfind(cpt, { blocks = blocks }) then
       turtle.headTowards(pt)
     end
     following = false

sys/etc/scripts/moveTo

@@ -23,7 +23,7 @@ turtle.run(function()
     error('turtle: No GPS response')
   end
 
-  if not turtle.pathfind(pt, nil, 64) then
+  if not turtle.pathfind(pt) then
     error('Unable to go to location')
   end
 end)