This commit will enable to select some items when pageloads.

usage
=====
<select class="selectpicker" multiple data-selected-text-format="count>3">
            <optgroup label="Games">
              
            
            <option>Tent</option>
            <option>Flashlight</option>
            <option id="selected">Toilet Paper</option>
            </optgroup>
            </select>

$(document).ready(function()
{
  $('.selectpicker').selectpicker('deselectAll');
  $('.selectpicker').selectpicker('selectFew');//'val', feedsubs);
});