Collapse bootstrap navbar after an item is clicked in the dropdown (for mobile widths).

bs-navbar-collapse-togle.js

$(document).on('click','.navbar-collapse.in',function(e) {
  // If child is an anchor or has class dropdown-toggle
  if( $(e.target).is('a') || ( $(e.target).attr('class') != 'dropdown-toggle' ) ) {
      // Collapse the dropdown nav
      $(this).collapse('hide');
  }
});