fix(datapicker): some IE8 compatibility improvements

Author: joshuacc

src/datepicker/datepicker.js

@@ -326,12 +326,12 @@ function ($compile, $parse, $document, $position, dateFilter, datepickerPopupCon
       };
 
       // popup element used to display calendar
-      var popupEl = angular.element('<datepicker-popup-wrap><datepicker></datepicker></datepicker-popup-wrap>');
+      var popupEl = angular.element('<div datepicker-popup-wrap><div datepicker></div></div>');
       popupEl.attr({
         'ng-model': 'date',
         'ng-change': 'dateSelection()'
       });
-      var datepickerEl = popupEl.find('datepicker');
+      var datepickerEl = angular.element(popupEl.children()[0]);
       if (attrs.datepickerOptions) {
         datepickerEl.attr(angular.extend({}, originalScope.$eval(attrs.datepickerOptions)));
       }
@@ -453,7 +453,7 @@ function ($compile, $parse, $document, $position, dateFilter, datepickerPopupCon
 
 .directive('datepickerPopupWrap', function() {
   return {
-    restrict:'E',
+    restrict:'EA',
     replace: true,
     transclude: true,
     templateUrl: 'template/datepicker/popup.html',