void insert(const QStringList &path, BranchNode *n)
{
BranchNode *current = this;
for (int i = 0; i < path.count(); ++i) {
BranchNode *c = current->childOfName(path.at(i));
if (c)
current = c;
else
current = current->append(new BranchNode(path.at(i)));
}
current->append(n);
}
