In Load.php -
This works in FF37, not in IE11 -
elseif (isset($modSettings['jquery_source']) && $modSettings['jquery_source'] == 'local')
loadJavascriptFile('jquery-2.1.3.min.js', array('default_theme' => true, 'seed' => false), 'jquery');
This works in both -
elseif (isset($modSettings['jquery_source']) && $modSettings['jquery_source'] == 'local')
loadJavascriptFile('jquery-1.11.0.min.js', array('default_theme' => true, 'seed' => false), 'jquery');