Update close button on defaultdialog to close @FS#1718.

static/partials/defaultdialog.html

@@ -1,5 +1,5 @@
 <div>
-	<div class="modal-header"><button type="button" class="close" ng-click="close()">×</button><h3 class="modal-title" ng-bind-html="header"></h3></div>
+	<div class="modal-header"><button type="button" class="close" ng-click="$close()">×</button><h3 class="modal-title" ng-bind-html="header"></h3></div>
 	<div class="modal-body" ng-transclude></div>
 	<div class="modal-footer"><button type="button" class="btn btn-default" ng-click="$close()">{{_("Close")}}</button></div>
-</div>
+</div>