chore(jqLite): implement the detach method

src/jqLite.js

@@ -46,6 +46,7 @@
  * - [`contents()`](http://api.jquery.com/contents/)
  * - [`css()`](http://api.jquery.com/css/)
  * - [`data()`](http://api.jquery.com/data/)
+ * - [`detach()`](http://api.jquery.com/detach/)
  * - [`empty()`](http://api.jquery.com/empty/)
  * - [`eq()`](http://api.jquery.com/eq/)
  * - [`find()`](http://api.jquery.com/find/) - Limited to lookups by tag name
@@ -368,6 +369,12 @@ function jqLiteEmpty(element) {
   }
 }
 
+function jqLiteRemove(element, keepData) {
+  if (!keepData) jqLiteDealoc(element);
+  var parent = element.parentNode;
+  if (parent) parent.removeChild(element);
+}
+
 //////////////////////////////////////////
 // Functions which are declared directly.
 //////////////////////////////////////////
@@ -450,7 +457,7 @@ forEach({
     return jqLiteInheritedData(element, '$injector');
   },
 
-  removeAttr: function(element,name) {
+  removeAttr: function(element, name) {
     element.removeAttribute(name);
   },
 
@@ -796,10 +803,10 @@ forEach({
     wrapNode.appendChild(element);
   },
 
-  remove: function(element) {
-    jqLiteDealoc(element);
-    var parent = element.parentNode;
-    if (parent) parent.removeChild(element);
+  remove: jqLiteRemove,
+
+  detach: function(element) {
+    jqLiteRemove(element, true);
   },
 
   after: function(element, newElement) {