code: function() {
                  var node, next, self = this;
                  for (node = self.firstChild; node;) {
                      next = node.next;
                      self.insert(node, self, true);
                      node = next;
                  }
                  self.remove();
              }
docs: Unwraps the node in other words it removes the node but keeps the children.
  
  @example
  node.unwrap();
  
  @method unwrap