index view add highlight
rename categorys to categories
modify relative views
load data from server
load data from server
load data from server
load data from server
load data from server
load data from server
load data from serve
add get and post function to itemsService
update function
update function
update view in itemModify
delete console.log
delete console.log
change itemAdd view
change itemModify view
can add id and barcode
add addItem function