add a computed property that determines if max number of cells is selected
add a computed property that determines if max number of cells is selected

wikimedia/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/wikipedia-ios,montehurd/apps-ios-wikipedia