Update AdminLTE

- from 2.4.5 to 2.4.18 (cannot detect any issues)
- set default scancycle for Apple Devices to 1

front/lib/AdminLTE/dist/js/pages/dashboard.js

@@ -11,6 +11,7 @@ $(function () {
 
   // Make the dashboard widgets sortable Using jquery UI
   $('.connectedSortable').sortable({
+    containment         : $('section.content'),
     placeholder         : 'sort-highlight',
     connectWith         : '.connectedSortable',
     handle              : '.box-header, .nav-tabs',