fix($compile): fix replaceWith

the old implementation didn't reattach jquery/jqlite data which caused
things like  to be lost

I tried various implementations but it appears that by reattaching the data
to the new node by copying the expando property is the most reliable of all.

src/jqLite.js

@@ -75,7 +75,7 @@
  */
 
 var jqCache = {},
-    jqName = 'ng-' + new Date().getTime(),
+    jqName = JQLite.expando = 'ng-' + new Date().getTime(),
     jqId = 1,
     addEventListenerFn = (window.document.addEventListener
       ? function(element, type, fn) {element.addEventListener(type, fn, false);}

src/ng/compile.js

@@ -867,22 +867,12 @@ function $CompileProvider($provide) {
                 linkRootElement = linkQueue.pop(),
                 origLinkNode = linkQueue.pop(),
                 scope = linkQueue.pop(),
-                linkNode = compileNode,
-                $origLinkNode = jqLite(origLinkNode);
+                linkNode = compileNode;
 
             if (origLinkNode !== origCompileNode) {
               // it was cloned therefore we have to clone as well.
               linkNode = JQLiteClone(compileNode);
-              replaceWith(linkRootElement, $origLinkNode, linkNode);
-            }
-
-            if (replace) {
-              if ($origLinkNode.data('$scope')) {
-                // if the original element before replacement had a new scope, the replacement should
-                // get it as well
-                jqLite(linkNode).data('$scope', scope);
-              }
-              dealoc($origLinkNode);
+              replaceWith(linkRootElement, jqLite(origLinkNode), linkNode);
             }
 
             afterTemplateNodeLinkFn(function() {
@@ -992,12 +982,16 @@ function $CompileProvider($provide) {
         for(i = 0, ii = $rootElement.length; i < ii; i++) {
           if ($rootElement[i] == oldNode) {
             $rootElement[i] = newNode;
+            break;
           }
         }
       }
+
       if (parent) {
         parent.replaceChild(newNode, oldNode);
       }
+
+      newNode[jqLite.expando] = oldNode[jqLite.expando];
       $element[0] = newNode;
     }
   }];