increase undo stack size

diylc/diylc-core/src/org/diylc/netlist/NetlistAnalyzer.java

@@ -24,6 +24,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.stream.Collectors;
 import org.diylc.core.IDIYComponent;
 
 public abstract class NetlistAnalyzer {
@@ -54,6 +55,17 @@ public abstract class NetlistAnalyzer {
     return tree;
   }
   
+//  protected Tree removeRedundantElements(Tree tree) {
+//    List<Tree> children = tree.getChildren()
+//        .stream()
+//        .map(t -> removeRedundantElements(t))
+//        .collect(Collectors.toList());
+//    if (children.size() == 1) {
+//      Tree first = children.get(0);
+//      return first;
+//    }
+//  }
+
   protected void connectNodes(Netlist netlist, Node nodeA, Node nodeB, List<Tree> concurrentPaths, Tree currentPath,
       Set<Node> visited) {
     if (nodeA == nodeB) {