add config option for outline

baumgen.js

@@ -259,15 +259,18 @@ function draw() {
     var rowspace = 20;
     var inspace = 30;
     var outspace = 10;
+    var outline = true;
 
     var maxh = (height - (rows-1)*rowspace - 2*outspace - 2*inspace) / rows;
 
-    var outline = new Path.Rectangle({
+    if(outline) {
+        var outlinepath = new Path.Rectangle({
             point: new Point(outspace, outspace),
             size: new Size(width - 2*outspace, height - 2*outspace),
             strokeWidth: 2,
             strokeColor: 'black'
         });
+    }
 
     for(var row=0; row<rows; row++) {
         var y = outspace + inspace + maxh * (row + 1) + rowspace * row;