fix(browser_adapter): fix clearNodes() in IE

Fixes angular#3295 Closes angular#3355

Author: pkozlowski-opensource

modules/angular2/src/dom/browser_adapter.ts

@@ -130,14 +130,14 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {
  }
  clearNodes(el) {
  while (el.firstChild) {
- el.firstChild.remove();
+ el.removeChild(el.firstChild);
  }
  }
  appendChild(el, node) { el.appendChild(node); }
  removeChild(el, node) { el.removeChild(node); }
  replaceChild(el: Node, newChild, oldChild) { el.replaceChild(newChild, oldChild); }
  remove(node): Node {
- node.remove();
+ node.parentNode.removeChild(node);
  return node;
  }
  insertBefore(el, node) { el.parentNode.insertBefore(node, el); }