'Adds an item for Alfred\'s response
:param uid: The items ID alfred uses for frequency aggregation of the item, make it unique and persistent
:param arg: What is returned in {query} if the item is selected
:param title: The large text of the item
:param subtitle: The subtext of the item
:param valid: If false, the icon entry cannot be submitted by pressing enter
:param autocomplete: If set, will put this value instead of current arg in {query}
:param icon: Icon
:param icontype: Set to "fileicon" to use an Icon from a file (e.g. in /Application) or
"filetype" to use default filetype icon'

def addItem(self, uid, arg, title, subtitle='', valid=True, autocomplete=None, icon=None, icontype=None):

    self._items.append(AlfredItem(uid, arg, title, subtitle, valid, autocomplete, icon, icontype))
    return self
