add _ to jshintrc
config localStorageService
use localStorageService in cartCountCtrl
use localStorageService in cartItemsListCtrl
use localStorageService in cartPayListCtrl
use localStorageService in categoryAddCtrl
use localStorageService in categoryModifyCtrl
use localStorageService in itemAddCtrl
use localStorageService in itemModifyCtrl
use localStorageService in itemsListCtrl
use localStorageService in addToCartService
use localStorageService in cartItemOperateService
use localStorageService in categoryService
use localStorageService in itemManagementService
use localStorageService in itemsService
use localStorageService in cartCountService
delete Util file
config localStorage
config localStorage
correct cartCountCtrl test codes