Deprecate query and queryAll, also add back querySelector and querySelectorAll.

tools/dom/templates/html/impl/impl_DocumentFragment.darttemplate

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 $(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
   factory $CLASSNAME() => document.createDocumentFragment();
 
   factory $CLASSNAME.html(String html,
@@ skipping 25 matching lines @@
   }
 
   void set children(List<Element> value) {
     // Copy list first since we don't want liveness during iteration.
     List copy = new List.from(value);
     var children = this.children;
     children.clear();
     children.addAll(copy);
   }
 
-  Element query(String selectors) => _querySelector(selectors);
+  ElementList querySelectorAll(String selectors) =>
+    new _FrozenElementList._wrap(_querySelectorAll(selectors));
 
-  List<Element> queryAll(String selectors) =>
-    new _FrozenElementList._wrap(_querySelectorAll(selectors));
+
 
   String get innerHtml {
     final e = new Element.tag("div");
     e.append(this.clone(true));
     return e.innerHtml;
   }
 
   void set innerHtml(String value) {
     this.setInnerHtml(value);
   }
@@ skipping 16 matching lines @@
 
 
   /**
    * Parses the specified text as HTML and adds the resulting node after the
    * last child of this document fragment.
    */
   void appendHtml(String text) {
     this.append(new DocumentFragment.html(text));
   }
 
+  /** 
+   * Alias for [querySelector]. Note this function is deprecated because its
+   * semantics will be changing in the future.
+   */
+  @deprecated
+  @Experimental()
+  @DomName('DocumentFragment.querySelector')
+  Element query(String relativeSelectors) {
+    return querySelector(relativeSelectors);
+  }
+
+  /** 
+   * Alias for [querySelectorAll]. Note this function is deprecated because its
+   * semantics will be changing in the future.
+   */
+  @deprecated
+  @Experimental()
+  @DomName('DocumentFragment.querySelectorAll')
+  ElementList queryAll(String relativeSelectors) {
+    return querySelectorAll(relativeSelectors);
+  }
 $!MEMBERS
 }